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MICRO 4/3RDS PHOTOGRAPHY: PANASONIC LUMIX G 14MM F/2.5 The Panasonic Lumix G 14mm pancake lens is the long awaited miniature standard wide prime. Some people have been disappointed by the aperture: The max aperture is f/2.5, which is a tad slow for primes. On the other hand, it is clear that size was important when designing this lens, and a moderate max aperture is needed to design a smalllens.
MICRO 4/3RDS PHOTOGRAPHY: LENS BUYER'S GUIDE In 2013, Sigma also released their third lens for the Micro Four Thirds system, the Sigma 60mm f/2.8 DN. It corresponds to a 120mm tele prime lens in 35mm equivalent terms, and also gets the new metal finish. Based on reviews, people tend to think that it BETTER FOCUS WITH LUMIX G 100-300MM MK II Better focus with Lumix G 100-300mm Mk II. The original Lumix G 100-300mm f/4-5.6 was an affordable and basic long tele zoom lens, from the early days of Micro Four Thirds. It was generally considered a good value lens, albeit not optimally sharp in the long end, and with newer cameras, the continuous drive mode became slower in AF-C,due to a
MICRO 4/3RDS PHOTOGRAPHY: LUMIX X 12-35MM F/2.8 REVIEW The Panasonic Lumix X 12-35mm f/2.8 is a premium standard zoom lens. It was released in 2012, but obviously intended as the kit lens for the high end GH3 camera released later the same year. The lens is show below, together the with basic Lumix G 14-42mm f/3.5-5.6 kit zoomlens:
MICRO 4/3RDS PHOTOGRAPHY: G85: AWESOME VIDEO IMAGE Image stabilization What we see, is that the Lumix G85 is able to stabilize the video recording also with the Lumix G 20mm f/1.7, which doesn't have any optical image stabilization (OIS).And with the OIS enabled Lumix G 14-42mm II, the G85 does a better job than the GH4, as the G85 uses both the in-body image stabilization and the lens OIS atthe same time.
MICRO 4/3RDS PHOTOGRAPHY: GH4 SHUTTERS Conclusion. The Lumix GH4 improves upon the GH3 in terms of the shutter readout speeds. Both the electronic shutter and the mechanical shutter have become faster. The electronic shutter suffers from the same problem as the GM1, though: The readout is limited to only 10 bits, which gives you more noise in the shadows. PANASONIC LUMIX DMW-FL360 FLASH UNIT Panasonic Lumix DMW-FL360 flash unit. The FL360 flash unit from Panasonic is a medium sized flash gun. It is functionally similar to the Olympus FL-36 flash unit. As the name indicates, it has a guide number of 36, which plants it firmly in the "medium flash" category. With the exception of wireless control, it has all the functions youwould
MICRO 4/3RDS PHOTOGRAPHY Meike 3.5mm f/2.8 (left) and Laowa 4mm f/2.8 (right) circular fisheye lenses. Both of these lenses were designed specifically for the Micro Four Thirds format. Yes, I know that Laowa have also released their lens with a Sony E mount.However, that lens is suboptimal in the sense that the whole image circle only covers a smaller part of the APS-C format, given the smaller size of the Four Thirds SAMYANG 7.5MM F/3.5 FISHEYE LENS REVIEW The Samyang 7.5mm f/3.5 fisheye lens, also marketed as Rokinon and Bower, is special in that it is one of the first third party lens designs made specially for Micro Four Thirds.Some other manual focus lenses for Micro Four Thirds are older designs with a new mount. The Samyang fisheye lens is an alternative to the native Panasonic Lumix G 8mm f/3.5 fisheye lens, so it makes sense to compare them. MICRO 4/3RDS PHOTOGRAPHY: LUMIX G 12-32MM F/3.5-5.6 REVIEW The Lumix G 12-32mm f/3.5-5.6 is a very fine lens, which is true to Micro Four Thirds format. It performs well. You cannot expect a stellar optical performance, if you do, go for the Lumix X 12-35mm lens. But the performance is certainly very good for a small kit zoomlens.
MICRO 4/3RDS PHOTOGRAPHY: PANASONIC LUMIX G 14MM F/2.5 The Panasonic Lumix G 14mm pancake lens is the long awaited miniature standard wide prime. Some people have been disappointed by the aperture: The max aperture is f/2.5, which is a tad slow for primes. On the other hand, it is clear that size was important when designing this lens, and a moderate max aperture is needed to design a smalllens.
MICRO 4/3RDS PHOTOGRAPHY: LENS BUYER'S GUIDE In 2013, Sigma also released their third lens for the Micro Four Thirds system, the Sigma 60mm f/2.8 DN. It corresponds to a 120mm tele prime lens in 35mm equivalent terms, and also gets the new metal finish. Based on reviews, people tend to think that it BETTER FOCUS WITH LUMIX G 100-300MM MK II Better focus with Lumix G 100-300mm Mk II. The original Lumix G 100-300mm f/4-5.6 was an affordable and basic long tele zoom lens, from the early days of Micro Four Thirds. It was generally considered a good value lens, albeit not optimally sharp in the long end, and with newer cameras, the continuous drive mode became slower in AF-C,due to a
MICRO 4/3RDS PHOTOGRAPHY: LUMIX X 12-35MM F/2.8 REVIEW The Panasonic Lumix X 12-35mm f/2.8 is a premium standard zoom lens. It was released in 2012, but obviously intended as the kit lens for the high end GH3 camera released later the same year. The lens is show below, together the with basic Lumix G 14-42mm f/3.5-5.6 kit zoomlens:
MICRO 4/3RDS PHOTOGRAPHY: G85: AWESOME VIDEO IMAGE Image stabilization What we see, is that the Lumix G85 is able to stabilize the video recording also with the Lumix G 20mm f/1.7, which doesn't have any optical image stabilization (OIS).And with the OIS enabled Lumix G 14-42mm II, the G85 does a better job than the GH4, as the G85 uses both the in-body image stabilization and the lens OIS atthe same time.
MICRO 4/3RDS PHOTOGRAPHY: GH4 SHUTTERS Conclusion. The Lumix GH4 improves upon the GH3 in terms of the shutter readout speeds. Both the electronic shutter and the mechanical shutter have become faster. The electronic shutter suffers from the same problem as the GM1, though: The readout is limited to only 10 bits, which gives you more noise in the shadows. PANASONIC LUMIX DMW-FL360 FLASH UNIT Panasonic Lumix DMW-FL360 flash unit. The FL360 flash unit from Panasonic is a medium sized flash gun. It is functionally similar to the Olympus FL-36 flash unit. As the name indicates, it has a guide number of 36, which plants it firmly in the "medium flash" category. With the exception of wireless control, it has all the functions youwould
MICRO 4/3RDS PHOTOGRAPHY: SYSTEMS COMPARED For example, with the extremely long and compact zoom lens Nikkor 70-300mm f/4.5-5.6, it is the best system for bird photography when you want a very compact and light combo. Also, the cameras have an impressively fast framerate, up to 60fps including full RAW capture. This makes it useful for sports and other types of specializedphotography.
MICRO 4/3RDS PHOTOGRAPHY: GM1 SHUTTERS 1. As the exposure commences, the first shutter curtain starts moving downwards, exposing the sensor. 2. After the duration of the shutter speed has expired, the second shutter starts moving downwards. In my example, the shutter curtains travel across in 1/100s, so the shutter speed of 1/500s corresponds to 1/5 total opening. 3-6. Both shutter BETTER FOCUS WITH LUMIX G 100-300MM MK II Better focus with Lumix G 100-300mm Mk II. The original Lumix G 100-300mm f/4-5.6 was an affordable and basic long tele zoom lens, from the early days of Micro Four Thirds. It was generally considered a good value lens, albeit not optimally sharp in the long end, and with newer cameras, the continuous drive mode became slower in AF-C,due to a
MICRO 4/3RDS PHOTOGRAPHY: GH4 SHUTTERS Conclusion. The Lumix GH4 improves upon the GH3 in terms of the shutter readout speeds. Both the electronic shutter and the mechanical shutter have become faster. The electronic shutter suffers from the same problem as the GM1, though: The readout is limited to only 10 bits, which gives you more noise in the shadows. MICRO 4/3RDS PHOTOGRAPHY: PRODUCT NEWS, SENSOR SIZE IS THE Micro 4/3rds Photography Introduction. This blog is a user's perspective on the Micro Four Thirds camera system. MICRO 4/3RDS PHOTOGRAPHY: MEIKE/NEEWER MACRO RINGS: HIGHLY The Meike/Skyblue/Neewer macro, are cheap, light, and appear solidly made. They are easy to bring along, to have a macro option easily available. They can be combined with almost any Micro Four Thirds lens, and enable autofocus, aperture operation, and EXIF information. MICRO 4/3RDS PHOTOGRAPHY: DEFISHED FISHEYE COMPARED WITH Conclusion. When defishing images from the Samyang 7.5mm f/3.5 fisheye lens, the resulting image becomes much wider than that from the widest rectilinear lens for the Micro Four Thirds system, the Lumix G 7-14mm f/4. However, you also lose some resolution in the corners. MICRO 4/3RDS PHOTOGRAPHY: SAMYANG 12MM F/2 REVIEW: COMPACT From left: Samyang/Rokinon 12mm f/2, Lumix X 12-35mm f/2.8 (my review) and Lumix G 12-32mm f/3.5-5.6 (my review) set to 12mm. How do they do it? It is not because the Samyang 12mm lens only covers the Four Thirds sensor. It is designed to cover also the APS-C sensor size, coming in versions for Sony E mount and Fujifilm X mount, and many more. The reason why the lens is so small, PIXEL RW-221 WIRELESS RF REMOTE CONTROL Clockwise from top left: Spiral cord with 2.5mm jack connectors, the remote receiver with a power button, and a shutter release button, the wireless remote control, batteries (4xAAA), and the operation manual. MICRO 4/3RDS PHOTOGRAPHY: HACKED GH1 VS GH2: VIDEO QUALITY Motion blurring typically makes the footage softer. Due to the hacked GH1 having a higher bitrate, it generated larger video files. The GH1 gave 5.4 MB/s, while the GH2 gave 2.8 MB/s. It's somewhat difficult to evaluate the quality of the video by looking at the videos, especially since YouTube compresses them anyway. BETTER FOCUS WITH LUMIX G 100-300MM MK II Better focus with Lumix G 100-300mm Mk II. The original Lumix G 100-300mm f/4-5.6 was an affordable and basic long tele zoom lens, from the early days of Micro Four Thirds. It was generally considered a good value lens, albeit not optimally sharp in the long end, and with newer cameras, the continuous drive mode became slower in AF-C,due to a
MICRO 4/3RDS PHOTOGRAPHY: LUMIX X 35-100MM F/2.8 Lumix X 35-100mm f/2.8: Expensive, but fantastic. The long f/2.8 zoom is a standard part in a pro photographer's lineup. Back in the time of the film SLRs, these lenses were typically around 70-200mm f/2.8. With the 2x crop factor of the Micro Four Thirds format, the corresponding focal length range becomes 35-100mm, and Panasonic have MICRO 4/3RDS PHOTOGRAPHY: LUMIX G 45-200MM F/4-5.6 The Panasonic Lumix G 45-200mm f/4-5.6 Mega O.I.S. is the value tele zoom from Panasonic. While not exactly cheap, it does provide a good value for money, with a maximum of 400mm tele (35mm film camera equivalent), an excess of 4x zoom, and optical image stabilization. The picture below shows the lens at 45mm (left), and extended at200mm. Size.
MICRO 4/3RDS PHOTOGRAPHY: PANASONIC LUMIX G 14MM F/2.5 The Panasonic Lumix G 14mm pancake lens is the long awaited miniature standard wide prime. Some people have been disappointed by the aperture: The max aperture is f/2.5, which is a tad slow for primes. On the other hand, it is clear that size was important when designing this lens, and a moderate max aperture is needed to design a smalllens.
MICRO 4/3RDS PHOTOGRAPHY: DIFFRACTION The smaller the sensor, or the higher the number of megapixels, the more diffraction. Also, the smaller the aperture, the higher the diffraction. For Micro Four Thirds cameras, it is generally said that one should be careful using apertures smaller than f/8. For example, f/11 or f/16 could potentially generate diffraction. MICRO 4/3RDS PHOTOGRAPHY: LUMIX X PZ 14-42MM F/3.5-5.6 The Panasonic Lumix G Vario X PX 14-42mm F3.5-5.6 Power OIS is a kit zoom lens in a very compact form factor. It collapses when not in use, in which case it is about the size of the Lumix G 20mm f/1.7 pancake lens. Both the zoom and focus are the "fly by wire" type, meaning that they can only be operated through levers on the side. MICRO 4/3RDS PHOTOGRAPHY: REVERSER RING FOR MACRO A fourth method is to buy a macro reverser ring. A reverser ring is quite simply an attachment which allows mounting a lens reversed on the camera. I have tried one such ring, easily available on various auction sites for around US$10. It is a simple thing. On one side, it has a Micro Four Thirds lens mount. PANASONIC LUMIX DMW-FL360 FLASH UNIT Panasonic Lumix DMW-FL360 flash unit. The FL360 flash unit from Panasonic is a medium sized flash gun. It is functionally similar to the Olympus FL-36 flash unit. As the name indicates, it has a guide number of 36, which plants it firmly in the "medium flash" category. With the exception of wireless control, it has all the functions youwould
SAMYANG 7.5MM F/3.5 FISHEYE LENS REVIEW The Samyang 7.5mm f/3.5 fisheye lens, also marketed as Rokinon and Bower, is special in that it is one of the first third party lens designs made specially for Micro Four Thirds.Some other manual focus lenses for Micro Four Thirds are older designs with a new mount. The Samyang fisheye lens is an alternative to the native Panasonic Lumix G 8mm f/3.5 fisheye lens, so it makes sense to compare them. SIGMA 30MM F/2.8 EX DN REVIEW: NOT FAST, NOT COMPACT, BUT The Sigma 30mm f/2.8 is a somewhat odd lens. It is a prime lens which does not appear to have any of the advantages for prime lenses: It is not very fast in terms of maximum aperture, and it is not a small lens, compared with the pancake lenses that we BETTER FOCUS WITH LUMIX G 100-300MM MK II Better focus with Lumix G 100-300mm Mk II. The original Lumix G 100-300mm f/4-5.6 was an affordable and basic long tele zoom lens, from the early days of Micro Four Thirds. It was generally considered a good value lens, albeit not optimally sharp in the long end, and with newer cameras, the continuous drive mode became slower in AF-C,due to a
MICRO 4/3RDS PHOTOGRAPHY: LUMIX X 35-100MM F/2.8 Lumix X 35-100mm f/2.8: Expensive, but fantastic. The long f/2.8 zoom is a standard part in a pro photographer's lineup. Back in the time of the film SLRs, these lenses were typically around 70-200mm f/2.8. With the 2x crop factor of the Micro Four Thirds format, the corresponding focal length range becomes 35-100mm, and Panasonic have MICRO 4/3RDS PHOTOGRAPHY: LUMIX G 45-200MM F/4-5.6 The Panasonic Lumix G 45-200mm f/4-5.6 Mega O.I.S. is the value tele zoom from Panasonic. While not exactly cheap, it does provide a good value for money, with a maximum of 400mm tele (35mm film camera equivalent), an excess of 4x zoom, and optical image stabilization. The picture below shows the lens at 45mm (left), and extended at200mm. Size.
MICRO 4/3RDS PHOTOGRAPHY: PANASONIC LUMIX G 14MM F/2.5 The Panasonic Lumix G 14mm pancake lens is the long awaited miniature standard wide prime. Some people have been disappointed by the aperture: The max aperture is f/2.5, which is a tad slow for primes. On the other hand, it is clear that size was important when designing this lens, and a moderate max aperture is needed to design a smalllens.
MICRO 4/3RDS PHOTOGRAPHY: DIFFRACTION The smaller the sensor, or the higher the number of megapixels, the more diffraction. Also, the smaller the aperture, the higher the diffraction. For Micro Four Thirds cameras, it is generally said that one should be careful using apertures smaller than f/8. For example, f/11 or f/16 could potentially generate diffraction. MICRO 4/3RDS PHOTOGRAPHY: LUMIX X PZ 14-42MM F/3.5-5.6 The Panasonic Lumix G Vario X PX 14-42mm F3.5-5.6 Power OIS is a kit zoom lens in a very compact form factor. It collapses when not in use, in which case it is about the size of the Lumix G 20mm f/1.7 pancake lens. Both the zoom and focus are the "fly by wire" type, meaning that they can only be operated through levers on the side. MICRO 4/3RDS PHOTOGRAPHY: REVERSER RING FOR MACRO A fourth method is to buy a macro reverser ring. A reverser ring is quite simply an attachment which allows mounting a lens reversed on the camera. I have tried one such ring, easily available on various auction sites for around US$10. It is a simple thing. On one side, it has a Micro Four Thirds lens mount. PANASONIC LUMIX DMW-FL360 FLASH UNIT Panasonic Lumix DMW-FL360 flash unit. The FL360 flash unit from Panasonic is a medium sized flash gun. It is functionally similar to the Olympus FL-36 flash unit. As the name indicates, it has a guide number of 36, which plants it firmly in the "medium flash" category. With the exception of wireless control, it has all the functions youwould
SAMYANG 7.5MM F/3.5 FISHEYE LENS REVIEW The Samyang 7.5mm f/3.5 fisheye lens, also marketed as Rokinon and Bower, is special in that it is one of the first third party lens designs made specially for Micro Four Thirds.Some other manual focus lenses for Micro Four Thirds are older designs with a new mount. The Samyang fisheye lens is an alternative to the native Panasonic Lumix G 8mm f/3.5 fisheye lens, so it makes sense to compare them. SIGMA 30MM F/2.8 EX DN REVIEW: NOT FAST, NOT COMPACT, BUT The Sigma 30mm f/2.8 is a somewhat odd lens. It is a prime lens which does not appear to have any of the advantages for prime lenses: It is not very fast in terms of maximum aperture, and it is not a small lens, compared with the pancake lenses that we MICRO 4/3RDS PHOTOGRAPHY: LUMIX X PZ 14-42MM F/3.5-5.6 The Panasonic Lumix G Vario X PX 14-42mm F3.5-5.6 Power OIS is a kit zoom lens in a very compact form factor. It collapses when not in use, in which case it is about the size of the Lumix G 20mm f/1.7 pancake lens. Both the zoom and focus are the "fly by wire" type, meaning that they can only be operated through levers on the side. MICRO 4/3RDS PHOTOGRAPHY: LUMIX G 45-200MM F/4-5.6 The Panasonic Lumix G 45-200mm f/4-5.6 Mega O.I.S. is the value tele zoom from Panasonic. While not exactly cheap, it does provide a good value for money, with a maximum of 400mm tele (35mm film camera equivalent), an excess of 4x zoom, and optical image stabilization. The picture below shows the lens at 45mm (left), and extended at200mm. Size.
MICRO 4/3RDS PHOTOGRAPHY: LUMIX G 12-60MM F/3.5-5.6 REVIEW Some have questioned why Panasonic have churned out so many different kit zoom lenses in the M4/3 format so far. However, one lens which is not going to be questioned in the same way, I think, is the new Lumix G 12-60mm f/3.5-5.6. It is shown below, in the fully zoomed position at 60mm, on the Lumix G85 camera it comes in a kit with: MICRO 4/3RDS PHOTOGRAPHY: LUMIX G 12-32MM F/3.5-5.6 REVIEW The Lumix G 12-32mm f/3.5-5.6 is a very fine lens, which is true to Micro Four Thirds format. It performs well. You cannot expect a stellar optical performance, if you do, go for the Lumix X 12-35mm lens. But the performance is certainly very good for a small kit zoomlens.
MICRO 4/3RDS PHOTOGRAPHY: LUMIX G 100-300MM F/4-5.6 Lumix G 100-300mm f/4-5.6. The Panasonic Lumix G 100-300mm f/4-5.6 Mega O.I.S. is a long tele zoom. This kind of lens would normally be used by people who are interested in photographing birds, wildlife, spectator sports, safaris, and so on. More mature DSLR camera systems are, generally speaking, better suited for these applications. SIGMA 30MM F/2.8 EX DN REVIEW: NOT FAST, NOT COMPACT, BUT The Sigma 30mm f/2.8 is a somewhat odd lens. It is a prime lens which does not appear to have any of the advantages for prime lenses: It is not very fast in terms of maximum aperture, and it is not a small lens, compared with the pancake lenses that we MICRO 4/3RDS PHOTOGRAPHY: LUMIX X 12-35MM F/2.8 REVIEW The Panasonic Lumix X 12-35mm f/2.8 is a premium standard zoom lens. It was released in 2012, but obviously intended as the kit lens for the high end GH3 camera released later the same year. The lens is show below, together the with basic Lumix G 14-42mm f/3.5-5.6 kit zoomlens:
MICRO 4/3RDS PHOTOGRAPHY: COMPARISON: GH1 AND GH2 The shell has been made from a different plastic material with a "crinkle" appearance. While the majority of the GH1 body was covered with a rubber-like covering, the shell of the GH2 is more slippery. On the other hand, the GH2 gains a more solid rubber grip. Somehow, I find that the rubber-like surface of the GH1 feels safe to operate:The
MICRO 4/3RDS PHOTOGRAPHY: DEFISHED FISHEYE COMPARED WITH Conclusion. When defishing images from the Samyang 7.5mm f/3.5 fisheye lens, the resulting image becomes much wider than that from the widest rectilinear lens for the Micro Four Thirds system, the Lumix G 7-14mm f/4. However, you also lose some resolution in the corners. MICRO 4/3RDS PHOTOGRAPHY: VIDEO QUALITY, HACKED GH1 Conclusion First of all, it is easy to conclude that the colour balance is different. I have the same saturation settings in both cameras (+1), and the lightning was the same. MICRO 4/3RDS PHOTOGRAPHY Meike 3.5mm f/2.8 (left) and Laowa 4mm f/2.8 (right) circular fisheye lenses. Both of these lenses were designed specifically for the Micro Four Thirds format. Yes, I know that Laowa have also released their lens with a Sony E mount.However, that lens is suboptimal in the sense that the whole image circle only covers a smaller part of the APS-C format, given the smaller size of the Four Thirds BETTER FOCUS WITH LUMIX G 100-300MM MK II Better focus with Lumix G 100-300mm Mk II. The original Lumix G 100-300mm f/4-5.6 was an affordable and basic long tele zoom lens, from the early days of Micro Four Thirds. It was generally considered a good value lens, albeit not optimally sharp in the long end, and with newer cameras, the continuous drive mode became slower in AF-C,due to a
MICRO 4/3RDS PHOTOGRAPHY: LUMIX G 12-32MM F/3.5-5.6 REVIEWLUMIX 12 32MM LENS REVIEWLUMIX 12 32MM REVIEWPANASONIC LUMIX 12 32MMPANASONIC 12 32 REVIEWPANASONIC 12 35 REVIEWPANASONIC 12 35 The Lumix G 12-32mm f/3.5-5.6 is a very fine lens, which is true to Micro Four Thirds format. It performs well. You cannot expect a stellar optical performance, if you do, go for the Lumix X 12-35mm lens. But the performance is certainly very good for a small kit zoomlens.
MICRO 4/3RDS PHOTOGRAPHY: PANASONIC LUMIX G 14MM F/2.5 The Panasonic Lumix G 14mm pancake lens is the long awaited miniature standard wide prime. Some people have been disappointed by the aperture: The max aperture is f/2.5, which is a tad slow for primes. On the other hand, it is clear that size was important when designing this lens, and a moderate max aperture is needed to design a smalllens.
MICRO 4/3RDS PHOTOGRAPHY: REVERSER RING FOR MACRO A fourth method is to buy a macro reverser ring. A reverser ring is quite simply an attachment which allows mounting a lens reversed on the camera. I have tried one such ring, easily available on various auction sites for around US$10. It is a simple thing. On one side, it has a Micro Four Thirds lens mount. SAMYANG 7.5MM F/3.5 FISHEYE LENS REVIEW The Samyang 7.5mm f/3.5 fisheye lens, also marketed as Rokinon and Bower, is special in that it is one of the first third party lens designs made specially for Micro Four Thirds.Some other manual focus lenses for Micro Four Thirds are older designs with a new mount. The Samyang fisheye lens is an alternative to the native Panasonic Lumix G 8mm f/3.5 fisheye lens, so it makes sense to compare them. MICRO 4/3RDS PHOTOGRAPHY: DEFISHED FISHEYE COMPARED WITH Conclusion. When defishing images from the Samyang 7.5mm f/3.5 fisheye lens, the resulting image becomes much wider than that from the widest rectilinear lens for the Micro Four Thirds system, the Lumix G 7-14mm f/4. However, you also lose some resolution in the corners. MICRO 4/3RDS PHOTOGRAPHY: LUMIX X HD PZ 45-175MM F/4-5.6 The new, compact tele zoom Panasonic Lumix X HD PZ 45-175mm f/4-5.6 has a long name, indicating a lot of improvements over the existing value tele zoom Lumix G 45-200mm f/4-5.6.In this review, I have mostly been comparing the lenses head to head. I think this makes sense, since most users will be choosing between them, and hence would like to know how they compare, and if the newer lens MICRO 4/3RDS PHOTOGRAPHY: LUMIX X 12-35MM F/2.8 REVIEW The Panasonic Lumix X 12-35mm f/2.8 is a premium standard zoom lens. It was released in 2012, but obviously intended as the kit lens for the high end GH3 camera released later the same year. The lens is show below, together the with basic Lumix G 14-42mm f/3.5-5.6 kit zoomlens:
PANASONIC LUMIX DMW-FL360 FLASH UNIT Panasonic Lumix DMW-FL360 flash unit. The FL360 flash unit from Panasonic is a medium sized flash gun. It is functionally similar to the Olympus FL-36 flash unit. As the name indicates, it has a guide number of 36, which plants it firmly in the "medium flash" category. With the exception of wireless control, it has all the functions youwould
MICRO 4/3RDS PHOTOGRAPHY Meike 3.5mm f/2.8 (left) and Laowa 4mm f/2.8 (right) circular fisheye lenses. Both of these lenses were designed specifically for the Micro Four Thirds format. Yes, I know that Laowa have also released their lens with a Sony E mount.However, that lens is suboptimal in the sense that the whole image circle only covers a smaller part of the APS-C format, given the smaller size of the Four Thirds BETTER FOCUS WITH LUMIX G 100-300MM MK II Better focus with Lumix G 100-300mm Mk II. The original Lumix G 100-300mm f/4-5.6 was an affordable and basic long tele zoom lens, from the early days of Micro Four Thirds. It was generally considered a good value lens, albeit not optimally sharp in the long end, and with newer cameras, the continuous drive mode became slower in AF-C,due to a
MICRO 4/3RDS PHOTOGRAPHY: LUMIX G 12-32MM F/3.5-5.6 REVIEWLUMIX 12 32MM LENS REVIEWLUMIX 12 32MM REVIEWPANASONIC LUMIX 12 32MMPANASONIC 12 32 REVIEWPANASONIC 12 35 REVIEWPANASONIC 12 35 The Lumix G 12-32mm f/3.5-5.6 is a very fine lens, which is true to Micro Four Thirds format. It performs well. You cannot expect a stellar optical performance, if you do, go for the Lumix X 12-35mm lens. But the performance is certainly very good for a small kit zoomlens.
MICRO 4/3RDS PHOTOGRAPHY: PANASONIC LUMIX G 14MM F/2.5 The Panasonic Lumix G 14mm pancake lens is the long awaited miniature standard wide prime. Some people have been disappointed by the aperture: The max aperture is f/2.5, which is a tad slow for primes. On the other hand, it is clear that size was important when designing this lens, and a moderate max aperture is needed to design a smalllens.
MICRO 4/3RDS PHOTOGRAPHY: REVERSER RING FOR MACRO A fourth method is to buy a macro reverser ring. A reverser ring is quite simply an attachment which allows mounting a lens reversed on the camera. I have tried one such ring, easily available on various auction sites for around US$10. It is a simple thing. On one side, it has a Micro Four Thirds lens mount. SAMYANG 7.5MM F/3.5 FISHEYE LENS REVIEW The Samyang 7.5mm f/3.5 fisheye lens, also marketed as Rokinon and Bower, is special in that it is one of the first third party lens designs made specially for Micro Four Thirds.Some other manual focus lenses for Micro Four Thirds are older designs with a new mount. The Samyang fisheye lens is an alternative to the native Panasonic Lumix G 8mm f/3.5 fisheye lens, so it makes sense to compare them. MICRO 4/3RDS PHOTOGRAPHY: DEFISHED FISHEYE COMPARED WITH Conclusion. When defishing images from the Samyang 7.5mm f/3.5 fisheye lens, the resulting image becomes much wider than that from the widest rectilinear lens for the Micro Four Thirds system, the Lumix G 7-14mm f/4. However, you also lose some resolution in the corners. MICRO 4/3RDS PHOTOGRAPHY: LUMIX X HD PZ 45-175MM F/4-5.6 The new, compact tele zoom Panasonic Lumix X HD PZ 45-175mm f/4-5.6 has a long name, indicating a lot of improvements over the existing value tele zoom Lumix G 45-200mm f/4-5.6.In this review, I have mostly been comparing the lenses head to head. I think this makes sense, since most users will be choosing between them, and hence would like to know how they compare, and if the newer lens MICRO 4/3RDS PHOTOGRAPHY: LUMIX X 12-35MM F/2.8 REVIEW The Panasonic Lumix X 12-35mm f/2.8 is a premium standard zoom lens. It was released in 2012, but obviously intended as the kit lens for the high end GH3 camera released later the same year. The lens is show below, together the with basic Lumix G 14-42mm f/3.5-5.6 kit zoomlens:
PANASONIC LUMIX DMW-FL360 FLASH UNIT Panasonic Lumix DMW-FL360 flash unit. The FL360 flash unit from Panasonic is a medium sized flash gun. It is functionally similar to the Olympus FL-36 flash unit. As the name indicates, it has a guide number of 36, which plants it firmly in the "medium flash" category. With the exception of wireless control, it has all the functions youwould
MICRO 4/3RDS PHOTOGRAPHY Meike 3.5mm f/2.8 (left) and Laowa 4mm f/2.8 (right) circular fisheye lenses. Both of these lenses were designed specifically for the Micro Four Thirds format. Yes, I know that Laowa have also released their lens with a Sony E mount.However, that lens is suboptimal in the sense that the whole image circle only covers a smaller part of the APS-C format, given the smaller size of the Four Thirds MICRO 4/3RDS PHOTOGRAPHY: LUMIX X 35-100MM F/2.8 Lumix X 35-100mm f/2.8: Expensive, but fantastic. The long f/2.8 zoom is a standard part in a pro photographer's lineup. Back in the time of the film SLRs, these lenses were typically around 70-200mm f/2.8. With the 2x crop factor of the Micro Four Thirds format, the corresponding focal length range becomes 35-100mm, and Panasonic have MICRO 4/3RDS PHOTOGRAPHY: DEFISHED FISHEYE COMPARED WITH Conclusion. When defishing images from the Samyang 7.5mm f/3.5 fisheye lens, the resulting image becomes much wider than that from the widest rectilinear lens for the Micro Four Thirds system, the Lumix G 7-14mm f/4. However, you also lose some resolution in the corners. MICRO 4/3RDS PHOTOGRAPHY: GM1 SHUTTERS 1. As the exposure commences, the first shutter curtain starts moving downwards, exposing the sensor. 2. After the duration of the shutter speed has expired, the second shutter starts moving downwards. In my example, the shutter curtains travel across in 1/100s, so the shutter speed of 1/500s corresponds to 1/5 total opening. 3-6. Both shutter MICRO 4/3RDS PHOTOGRAPHY: LUMIX X 12-35MM F/2.8 REVIEW The Panasonic Lumix X 12-35mm f/2.8 is a premium standard zoom lens. It was released in 2012, but obviously intended as the kit lens for the high end GH3 camera released later the same year. The lens is show below, together the with basic Lumix G 14-42mm f/3.5-5.6 kit zoomlens:
MICRO 4/3RDS PHOTOGRAPHY: MEIKE/NEEWER MACRO RINGS: HIGHLY The Meike/Skyblue/Neewer macro, are cheap, light, and appear solidly made. They are easy to bring along, to have a macro option easily available. They can be combined with almost any Micro Four Thirds lens, and enable autofocus, aperture operation, and EXIF information. MICRO 4/3RDS PHOTOGRAPHY: LUMIX G HD 14-140MM F/3.5-5.6 REVIEW First, the basic Lumix G 14-42mm is a very under appreciated lens. It is much better than its reputation, in my experience. Second, as the 14-140mm lens is a superzoom, with a wide 10x zoom range, then it is much more challenging to design, and non-optimal performance in theshort and long end
MICRO 4/3RDS PHOTOGRAPHY: LUMIX G 100-300MM F/4-5.6 Lumix G 100-300mm f/4-5.6. The Panasonic Lumix G 100-300mm f/4-5.6 Mega O.I.S. is a long tele zoom. This kind of lens would normally be used by people who are interested in photographing birds, wildlife, spectator sports, safaris, and so on. More mature DSLR camera systems are, generally speaking, better suited for these applications. PIXEL RW-221 WIRELESS RF REMOTE CONTROL Clockwise from top left: Spiral cord with 2.5mm jack connectors, the remote receiver with a power button, and a shutter release button, the wireless remote control, batteries (4xAAA), and the operation manual. MICRO 4/3RDS PHOTOGRAPHY: HACKED GH1 VS GH2: VIDEO QUALITY Motion blurring typically makes the footage softer. Due to the hacked GH1 having a higher bitrate, it generated larger video files. The GH1 gave 5.4 MB/s, while the GH2 gave 2.8 MB/s. It's somewhat difficult to evaluate the quality of the video by looking at the videos, especially since YouTube compresses them anyway. MICRO 4/3RDS PHOTOGRAPHYINTRODUCTION
This blog is a user's perspective on the Micro Four Thirds camera system. Read more ...Lens Buyer's Guide.
Panasonic GH4 review. My lens reviews: Olympus 9mm f/8 fisheye,
Lumix G 12-32mm f/3.5-5.6,
Leica 25mm f/1.4
,
Lumix X 12-35mm f/2.8,
Lumix X 35-100mm f/2.8,
Sigma 30mm f/2.8
, Sigma 19mm
f/2.8
,
Lumix X PZ 14-42mm f/3.5-5.6,
Lumix X PZ 45-175mm f/4-5.6,
Olympus M.Zuiko 45mm f/1.8,
Panasonic Lumix G 100-300mm f/4-5.6,
Panasonic Leica Lumix DG Macro-Elmarit 45mm f/2.8 1:1 Macro,
Panasonic Lumix G 45-200mm f/4-5.6,
Panasonic Lumix G 20mm f/1.7 pancake,
Panasonic Lumix G 14mm f/2.5 pancake,
Panasonic Lumix G HD 14-140mm f/4-5.8,
Panasonic Lumix G HD 14-140mm f/3.5-5.6,
Panasonic Lumix G 8mm f/3.5 fisheye,
Lumix G 7-14mm f/4
,
Samyang 7.5mm f/3.5 fisheye,
Tokina 300mm f/6.3 mirror reflex tele,
Lensbaby 5.8mm f/3.5 circular fisheye lens THURSDAY, 2 JANUARY 2020 LAOWA 4MM F/2.8 FISHEYE: FUN AND NICE NOVELTY LENS We have been blessed with some small, good and inexpensive fisheye lenses for the Micro Four Thirds format. The Samyang 7.5mm f/3.5 (myreview)
especially comes to my mind, being a personal favourite for a almost a decade. Another interesting lens has popped up, the Laowa 4mm f/2.8 210° circular fisheyefrom
Venus Optics.
Compared to the Samyang, it is less expensive, smaller in size, wider, faster and in general more exotic. So is it any good? Let's take alook.
The lens is totally mechanical, with no electronic connections at all. You set the aperture and focus manually, just like with all other traditional pre-autofocus lenses. And this works fine! The aperture ring has light clicks on full aperture stops, and has an adequate level of friction so that it doesn't slip when you set it. Despite the clicks, it can still be set easily to intermediate apertures, especially since there is a generous distance between the stops for the largest apertures. The focus ring is near the mount, and is so narrow that you have to use the finger index piece provided to operate it. The focus ring is nicely dampened, and feels like it is high quality. The lens has a metal construction, and would appeal to those who like classic mechanical lenses. It comes with a metal cap, which is held in place with friction. This functions fine, just slip it over the lens, and it is well protected. Be sure not to lose the cap, since sourcing a new one will be somewhatexpensive.
The lens is very small. The diameter is smaller than the rear lens cap, as you can see from the picture above. To see just how small it is, compare it with similar circular fisheye lenses: From left to right: Laowa 4mm f/2.8on Lumix GX850
,
Meike 6.5mm f/2
on Sony a5100
and Samyang 8mm f/3.5on Nikon Z 7
.
LENS
LAOWA 4MM F/2.8
MEIKE 6.5MM F/2
SAMYANG 8MM F/3.5
Format
Micro Four Thirds
APS-C
Full Format
Field of view
210°
190°
180°
Weight
135g
300g
443g
Diameter
45mm
61mm
75mm
Length
26mm
52mm
77mm
Minimum focus distance0.08m
0.19m
0.30m
<br /> <br /> <br /> While the size dimensions themselves are impressive for the Laowa 4mm lens, what is especially impressive is the field of view at 210°. In this context, 180° means that the lens pictures everything in front of it, including straight up, down, and to the sides. 210° means that in addition, it also sees _backwards_, behind you. Lenses that could do this used to be extremely exotic and expensive, like the near mythical Nikon 6mm f/2.8 circular fisheye lens with a 220° field of view from 1972. Not only is it gigantic in size, but also very, very expensive. The field of view can be illustrated with the green segment in theimage below:
To achieve this wideness, an extreme lens design is used: A side effect is, as you can probably guess already, the lens will also pick up the grip on any camera which has a handle protruding from the body, and, of course, your fingers. That is why the lens is pictured with the handle-less Lumix GX850above.
Here is what an image looks like when you use the Lumix GH5,
notice the grip and fingers on the right hand side of the image: Also, with the wide field of view, it takes some practice avoiding the inclusion of your feet or head inside the image as well. Generally, you have to hold the camera out in front of you when using the lens. And as the lens covers more than half of the sphere around you, you should expect to have the sun, or some other bright light, inside the image quite often. Hence, it is important to see how the lens handles strong contrast. Let's compare it with the two others pictured initially (click to see larger versions of the pictures). The sun is in the centre right part of the images, which is a challenging situation for a wide angle lens. All the images were taken at f/5.6:Laowa 4mm f/2.8
on Lumix GX850
:
Meike 6.5mm f/2
on Sony a5100
Samyang 8mm f/3.5
on Nikon Z 7
The first thing to note is the wider field of view of the first two images, compared with the traditional 180° specification of theSamyang lens.
Second, you'll note that there is the most sun flare in the first image taken with the Laowa lens.
This is a sign that the optical design is weaker. We can also compare the sharpness from the centre of the images. I have scaled them so that they have the same resolution: And from the right hand side: Now, it is difficult to compare these. Of course, the cameras have quite different resolutions: 16MP (Lumix GX850), 24MP (Sony a5100), and 45MP (Nikon Z 7). So when scaled to the same resolution, the two latter benefit from having more usable pixels. The Lumix image is also somewhat less exposed. Still, it is apparent that the usable sharpness is lower on the Laowa 4mm f/2.8.
But this is not a deal breaker: With some sharpening applied in post it would look quite good, and notice that the lens retains quite good sharpness off-centre, compared with the peer lenses. So the Laowa fares quite good in this test.VIDEO
As for the use in video, the lens is somewhat challenging. Only a few Micro Four Thirds cameras can record video from the whole sensor in 4:3 mode, which is required to catch the whole circular fisheye image.The Lumix GH5
can do this.
Other cameras can only record video in 16:9 mode, which will strip the top and bottom ends off the circular image, which is not very useful. Hence, there is currently no M4/3 camera which can record clean video off the whole image circle, without also showing the camera grip inthe video.
Here is what it looks like with the Lumix GH5 in 4:3 mode. Note the camera grip is visible on the right hand side: COMPARED WITH THE SAMYANG 7.5MM F/3.5 FISHEYE Regular readers will know that the Samyang 7.5mm f/3.5(my review)
is one of my favourite lenses. It is one of the Micro Four Thirds lenses I have used the most for the last decade. So how does it compare with the Laowa 4mm circular fisheye lens? _Laowa 4mm f/2.8 210° circular fisheye (left), Samyang 7.5mm f/3.5 fullframe fisheye(right)_
First off, what properties do they share? Both are fully manual lenses, requiring you to set the focus and aperture manually. Also, both are third party lenses, designed by others than those who own the format, trying to capitalize on the popularity of Micro Four Thirds. And both are fisheye lenses, but in different ways. The Laowa is a _circular_ fisheye lens, meaning that it projects everything within the 210° field of view into a circle in the middle of the sensor plane. Everything outside of this circle is black. The Samyang, on the other hand, is a _full frame_ fisheye lens. It covers an equally impressive 180° field of view, but only diagonally across the full sensor frame. Horizontally and vertically, it covers a smaller angle of view. So the disadvantage is that it doesn't cover as much of the field of view, but the advantage is that it uses the sensor more efficiently: All of the sensor frame is used. The two types are illustrated here. While most fisheye lenses have a 180° coverage, keep in mind that for the Laowa lens it is 210°: This makes images coming from the Samyang lens more easy to use: People are more used to seeing rectangular images, as opposed to circular images. Also, video will look good, both in 4:3 and the morecommon 16:9 format.
The differences can be illustrated with some example images, all taken at f/5.6. Click to enlarge them:Laowa 4mm f/2.8
Samyang 7.5mm f/3.5
Optically, I would rate the Samyang lens somewhat better. But the Laowa lens performs quite well here, and you'll see that there isn't a lot of flare issues in the high contrast night shots. So both lenses should give you good results. Regarding the different approaches (circular vs full frame fisheye): I think that if you want _one_ fisheye lens to cover your extreme wide angle needs, the easy choice is the Samyang 7.5mm f/3.5.
This lens will give you images straight out of the camera which are interesting and useful, even without any post process defishing, e.g., using the free software Hugin. On the other hand, the Laowa 4mm f/2.8 is more extreme and has a higher novelty factor, for better and for worse. This lens can give you truly unique images, but to make them useful, you may need to work a bit harder both taking the images in the first place, and on post processing.CONCLUSION
The Laowa 4mm f/2.8 210° circular fisheye lens is inexpensive, small, well made, and optically competent, but not perfect. If you would like to have a fun novelty lens for some occasional extremely wide images, then this is a good choice: There is hardly any lens available which is wider, and it is a good qualitylens to boot.
Don't be intimidated by the manual focus. If you are taking a scenery shot in good light, just set the aperture to f/5.6, and the focus ring near infinity, and everything is well in focus. If you want to take a closeup picture, to focus correctly can be a bit more tricky, but with some practice this should just take some extra seconds with the nice focus peaking tools that most cameras have. <br />EXAMPLE IMAGES
Click to enlarge:
By using the Hugin software to defish the images, you can get imageslike these:
<br />3 comments:
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Labels: venus optics TUESDAY, 12 SEPTEMBER 2017 GH5 AND G85 DUAL IS COMPARED The Lumix GH5 is the first GH series camera to have IBIS, in body image stabilization. This means that even prime lenses without any OIS feature can be stabilized, in both photos and videos. But how does it compare with the Lumix G85 , which offers the same function at a muchlower price?
In this article, I put them head to head. I have compared them using the Lumix G 14-42mm f/3.5-5.6 II lens, which is capable of Dual IS. Both cameras are mounted to a Desmond stereo bracket here. They are both recording in 1080p resolution, with 60FPS framerate. I have both set to max aperture, 180 degrees shutter, and using continuous autofocus. Here is the comparison: A note about the autofocus speed of the Lumix GH5 . In this video, I set both the AF sliders to max, "AF Speed" and "AF Sensitivity" on both cameras. I think the effectiveness of the Lumix GH5 image stabilization is better. The G85 exhibits some jerkiness while panning, and the GH5 generally achieves amore smooth motion.
But this was a rather extreme test, and you are likely to move your camera more carefully than what I have done here for real life use. The autofocus performance is quite similar. The GH5 aims to avoid misfocusing, and does not change the focus as quickly, even with the AF sliders set to the max. This can be an issue for people who are using the camera for youtube blogging (vlogging), where they want to show and object in front of the camera and expect the focus to change instantly. But for most other real life use, it is mostly a goodthing.
Here is another example video using a pair of Lumix G 20mm f/1.7pancake lenses :
This was done in very low lights, f/1.7, 1/120s, 60FPS, ISO 1600-3200.13 comments:
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WEDNESDAY, 2 AUGUST 2017 BETTER FOCUS WITH LUMIX G 100-300MM MK II The original Lumix G 100-300mm f/4-5.6 was an affordable and basic long tele zoom lens, from the early days of Micro Four Thirds. It was generally considered a good value lens, albeit not optimally sharp in the long end, and with newer cameras, the continuous drive mode became slower in AF-C, due to a slow aperture mechanism. Unexpectedly, since there is already the high end long tele zoom lensLeica 100-400mm
,
the 100-300mm lens has been upgraded to a Lumix G 100-300mm Mk II.
The optical design, and, indeed, the lens body, is exactly the same, however, it gets a newer focus motor, aperture mechanism, and compatibility with newer IBIS (In Body Image Stabilization). _Lumix G 100-300mm Mk I (left) and Lumix G 100-300mm Mk II (right)_
Also, it gains weather protection, with one consequence being the rubber gasket around the bayonet mount, seen to the right below: _Lumix G 100-300mm Mk I (left) and Lumix G 100-300mm Mk II (right)_
I have put the lenses to the test, to see if there is any real reason to get the newer one.FOCUS SPEED
First, the focus speed. This is a static test, with both lenses on the same camera (Lumix GX7), to see which focuses faster (Lumix G100-300mm Mk II
on
the right hand side): I triggered both cameras simultaneously using a Pixel RW-211 remotecontrol.
The
video below shows the outcome of the test. First, I test them at 100mmf/4.5:
The focus delay is 0.57s for the Mk I version, and 0.55s using the MkII version
.
This difference is barely worth noting, I would say they are equally fast in this test. It was done in somewhat dim indoor lightning. In the second test at 100mm and 300mm, I test both lenses on a moremodern Lumix GH5
camera:
At 100mm, the newer lens is clearly faster, with a focus delay of 0.20s (Mk II) vs 0.25s (Mk I). At 300mm, though, I repeated the test twice with different lightning, and consistently got about about 30% slower focus with the Mk II version of the lens. This was an unexpected result. I could guess that the newer lens still has a less mature firmware, and that future firmware tweaks may improve this. REAL LIFE USE, BIRDS IN FLIGHT One typical and challenging way to use a long tele lens, is to photograph birds in flight. This is demanding for the camera and lens, as you will typically leave the focus mode in AF-C, and trust that it gets you the bird in focus when you press the shutter fully to takethe pictures.
I had the continuous drive mode enabled with the Lumix GH5 camera, and took the series of pictures under the same conditions. I used 300mm, f/5.6, 1/640s. Note that when photographing birds in flight, you would normally use a somewhat faster shutter speed, typically around 1/1000s or more. Click for larger images:Mk I version
(focus is generally not good)Mk II version
(barring some motion blur, most are well in focus) The first thing to note is that I get a faster framerate with the newer lens. This is due to the faster focus and aperture mechanisms. With the older lens, I'd say that the framerate drops to about half. This is visible in the pictures above, in the sense that I get a longer stream of pictures to choose from with the newer lens. While this is certainly good, please note that the new lens still slows down the camera, meaning that the aperture mechanism of the newer lens is faster, but still not _instantaneous._ As for the focus, the bird is much more consistently and accurately sharp with the newer lens. So with the same camera, and the same continuous focus mode, using the newer lens appears to nail the focus better. Again, this means a higher keeper rate. Even if I was able to photograph birds in flight (BIF) using this combo, I'd say this is still a lot easier to achieve using a traditional DSLR system, at the same price point. So while the LumixGH5
has taken continuous autofocus to a new level, it is still not nearly as good as a similarly priced DSLR camera, e.g., the Nikon D500.
Here are two more series: Mk I version (1/4 in focus)Mk II version
(3/4
in focus)
IMAGE QUALITY
About the image quality, I have taken the same pictures using theLumix GH5
camera at 300mm, f/5.6 and f/7.1. The full picture looks like this: Here are 100% crops from the centre: And 100% crops from a corner area: I think this shows a somewhat better optical performance with Lumix G100-300mm Mk II
.
I only tested the lens at maximum extension, 300mm, since this tends to be the most challenging position for the lens, and it is also the way many will use it: At least I tend to use the lens almost exclusively at 300mm.CONCLUSION
The Lumix G 100-300mm f/4-5.6 II is a nice upgrade from the first version. It adds weather protection, and the zoom ring is stiffer, meaning less zoom creep. When using continuous autofocus on a Lumix GH5,
the newer lens gives you a higher framerate, and, in my experience, better focus performance. Both are quite important for sports, birds and wildlife, which I think are key uses for a lens like this. So, should you upgrade from your Mk I lens? If you are serious about long tele lenses, perhaps you'd rather look into the premium Leica100-400mm
.
On the other hand, the Lumix G 100-300mm f/4-5.6 II does give a real performance improvement compared with the original, and it is still smaller and lighter than the Leica 100-400mm.
While I personally wouldn't trust the weather proofing enough to take the lens outside in rain, the lens is good to bring along while travelling, as it is more likely to survive the dust, sand, and moisture issues you might encounter.13 comments:
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Labels: autofocus
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THURSDAY, 4 MAY 2017 GH5 IBIS IS AS GOOD AS OLYMPUS The Lumix GH5 is the first GH series camera to have IBIS, in body image stabilization. This means that even prime lenses without any OIS feature can be stabilized, in both photos and videos. But how does it compare with the Olympus E-M5 Mark II,
which made waves in this area almost a couple of years ago, with a fantastic video image stabilization? In this article, I put them head to head. To avoid any possible advantage of using the same brand name lens as camera body, I have used the third party Sigma 30mm f/2.8 Art lenses, which I like a lot: Both cameras are mounted to a Desmond stereo bracket here. They are both recording in 1080p resolution, with 60FPS framerate. I have both set to f/2.8 aperture, and using continuous autofocus. Here is thecomparison:
A note about the autofocus speed of the Lumix GH5 . In this video, I set both the AF sliders to max, "AF Speed" and "AF Sensitivity". Without this change, the GH5 would have been hopelessly slower to focus than the Olympus camera inthis comparison.
However, in real life use, I don't think I would have set them this high. After all, it is seldom you need the AF to react this fast inreal life usage.
My analysis of the outcome, is that the Lumix GH5 is just as good as the Olympus camera when it comes to stabilizing the video stream. So it shows that Panasonic have come a long way with IBIS!4 comments:
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Labels: gh5 , ibis
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TUESDAY, 25 APRIL 2017 GH5 E-SHUTTER IS SLOWER! The Lumix GH3 introduced a new concept in 2012: Electronic shutter. Meaning that you no longer had to rely on a mechanical curtain shutter in front of the sensor to start and stop the exposure, this could now be done purely electronically by the sensor itself. The benefits are obvious: Less wear on the shutter if you want to make a time-lapse, for example. And a perfectly silent camera. However, there was also a big downside: The sensor was scanned vertically during electronic shutter usage, and this scan was slow, taking a total of 1/10s. If you moved the camera, or the subject moved in this time, you would get skewed lines and weird effects. And can you hold the camera steady for 1/10s? No, that is impossible. So the usefulness was rather limited. Future implementations increased the e-shutter scan speed, however, at the expense of the bit depth. Using only 10 bits rather than 12 bits normally, that would increase the scanning speed, but reduce the dynamic range capabilities. This was done, e.g., in the Lumix GH4, angering some users. And the scan speed was still quite slow, way slower than cameras from the Nikon 1 series, for example, with a 1/80s scan speed. With this backdrop, the big question is: What about the Lumix GH5?
What is the electronic shutter scanning speed and bit depth? Does it finally make the electronic shutter useful? That is what I will answer here, by comparing with two similar cameras:Back: Lumix GH5
(left) and Lumix GH4 (right), and Lumix G85 in the front. Despite these cameras appearing to be the same size, they are in fact significantly different, with the GH5 being largest, and the G85being smallest.
SPEED OF E-SHUTTER READOUT The Lumix GH3 electronic shutter had a readout speed of 1/10s, which is very slow. This leads to significant rolling shutter artifacts, that you can read about here.How
do the cameras above compare? One way to test the speed of the electronic shutter is to take a photo at a fast shutter speed in artificial light. For about a century or so, people have been using incandescent light bulbs for electronic indoor lightning. Even when used on alternating current (AC), the light is stable. Since the filament is heated, it emits light also when the alternating current is at zero. However, traditional incandescent light bulbs are now being replaced with the energy saving fluorescent light bulbs. They tend to flicker at 100Hz (in Europe) or at 120Hz (in the US). The lights don't flicker at 50Hz and 60Hz, as you might expect. This is since during each period, the electrical current reaches two peaks, see the illustrationbelow:
Here are images taken at ISO 3200, 1/400s with the three cameras:Lumix GH5
Lumix GH4
Lumix G85
Each yellow row represents 1/100s of scan time, and the more rows, the slower. So there is your answer, the Lumix GH5 has the _slowest_ e-shutter scan speed of the three. Who would haveguessed?
By counting the lines more thoroughly, I get these approximate scanspeeds:
Lumix GH5
Lumix GH4
Lumix G85
1/22s
(but approx 1/50s at ISO 800 or lower)1/30s
1/25s
BIT DEPTH
Having answered the first question, what about the second? Do you lose some bit depth, and, hence, dynamic range, when using the electronicshutter?
To find out, I took the same picture using the three cameras, and I underexposed by two stops. Then I increased the exposure by three stops in a RAW editing program. That reveals how much details are left in the shadows. I used ISO 200, the base ISO, in all the cases. Here are the pictures, after adjusting the exposure by +3 in post processing, using the RAW file:Lumix GH5
Lumix GH4
Lumix G85
Mechanical shutter
Electronic shutter
They look quite similar on first look, but some crops at 100% reveals the difference. The top crops are from the mechanical shutter, while the lower are from the electronic shutter: What we see here is that the Lumix GH5 has the same image quality using both the mechanical and electronic shutters. The other cameras, on the other hand, lose some details in the shadows in electronic shutter mode, indicating a lower bit depth.So the Lumix GH5
prioritizes image quality over scan speed, which is why it is the slowest in my above test. Also, it has a higher resolution at 20MP, which slows down the sensor scan. Keep in mind that these images were underexposed significantly, and then raised in post processing. So the image quality you see here is much worse than what you would get with normal use. In real life use, you would probably not see any difference at all between the electronic shutter and mechanical shutter images, using the Lumix GH4or G85.
Also, when using a higher ISO, the lower bits are probably mostly noise anyway, meaning that there is little to benefit from the extra bits in the GH5 rendering.CONCLUSION
The Lumix GH5
prioritizes image quality over scanning speed in electronic shutter mode. While this will make many fans happy, there is a downside: A slower sensor scan which leads to rolling shutter effects. Here are some examples taken using the electronic shutter with the GH5. In the first, I pan the camera following the bird, which skews the building in the background: In the second, a passing car is skewed, due to the speed: The shutter speed is not relevant for these effects. Even if you set a very fast shutter speed, you would still get the skewing. It is the scan speed which creates these effects, and it cannot be changed. The only solution is to use the mechanical shutter. But there is good news! If you use the 6K photo mode, then the camera is able to scan the sensor surface much faster, which should help avoiding the rolling shutter effects. It probably caps some bit depth, but as you don't get any RAW file anyway, I guess it doesn't mattermuch.
Here is the Joker picture taken with 6K photo mode, indicating a scan speed of 1/60s, quite impressive:Lumix GH5
Lumix GH4
Lumix G85
Electronic shutter scan speed1/22s
(1/50s at ISO 800 and lower)1/30s
1/25s
Electronic shutter bit depth12
10
10
6K Photo scan speed
1/60s
NA
NA
6K Photo bit depth
10?
NA
NA
So my conclusion is: If you want to use the electronic shutter and get the best image quality, make sure to keep your camera stable and use the ordinary electronic shutter mode. If you are going to do actions shots, use the 6K photo mode, which does the same, but with a faster scanning, and without the RAW fileoutput.
The really positive news here is that with the Lumix GH5,
Panasonic gives us this choice.ELECTRONIC SHUTTER
6K PHOTO
PROS
Best image quality
Less rolling shutter effects, better for sports, animals, etcCONS
Can give skewed effects due to rolling shutter No RAW output, however, the JPEG image is actually quite good. Be sure to get the exposure and white balance correct when taking theimages
Out of the three cameras, I would recommend the Lumix GH5 if you can justify the investment, otherwise, get the Lumix G85.
The Lumix GH4
is good for those who must have the V-Log functionality,
but want the cheaper option.12 comments:
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, lumix gh5
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