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#11
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DSLR resolution suffers by about 20% when electronic shutter notused with mirror up
On 1/27/2018 6:28 PM, Eric Stevens wrote:
On Sat, 27 Jan 2018 10:57:29 +0100, Alfred Molon wrote: In article , Eric Stevens says... With the E-M1 II in high res mode (80 MP) it's not sufficient to disable the mechanical shutter (i.e. use the electronic shutter). You need a wireless shutter release and you also have to disable the autofocus, because the AF motor movements in the lens generate vibrations. And don't forget the concrete foundations. Doesn't have to be concrete. Can by anything, also sand or mud, as long as it doesn't move. " ... as long as it doesn't move" That's why I always use concrete. I've seen idiots set up a tripod on boats. -- PeterN |
#12
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DSLR resolution suffers by about 20% when electronic shutter not used with mirror up
In article , PeterN
wrote: I've seen idiots set up a tripod on boats. that's not as stupid as it might seem. |
#13
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DSLR resolution suffers by about 20% when electronic shutter not used with mirror up
On Jan 27, 2018, PeterN wrote
(in article ): On 1/27/2018 6:28 PM, Eric Stevens wrote: On Sat, 27 Jan 2018 10:57:29 +0100, Alfred Molon wrote: In , Eric Stevens says... With the E-M1 II in high res mode (80 MP) it's not sufficient to disable the mechanical shutter (i.e. use the electronic shutter). You need a wireless shutter release and you also have to disable the autofocus, because the AF motor movements in the lens generate vibrations. And don't forget the concrete foundations. Doesn't have to be concrete. Can by anything, also sand or mud, as long as it doesn't move. " ... as long as it doesn't move" That's why I always use concrete. I've seen idiots set up a tripod on boats. That is one way to capture wave motion. ;-) -- Regards, Savageduck |
#14
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DSLR resolution suffers by about 20% when electronic shutter not used with mirror up
In article , PeterN says...
On 1/27/2018 6:28 PM, Eric Stevens wrote: On Sat, 27 Jan 2018 10:57:29 +0100, Alfred Molon wrote: In article , Eric Stevens says... With the E-M1 II in high res mode (80 MP) it's not sufficient to disable the mechanical shutter (i.e. use the electronic shutter). You need a wireless shutter release and you also have to disable the autofocus, because the AF motor movements in the lens generate vibrations. And don't forget the concrete foundations. Doesn't have to be concrete. Can by anything, also sand or mud, as long as it doesn't move. " ... as long as it doesn't move" That's why I always use concrete. I've seen idiots set up a tripod on boats. It eliminates some motion (camera shake due to shaking hands). -- Alfred Molon Olympus E-series DSLRs and micro 4/3 forum at http://tech.groups.yahoo.com/group/MyOlympus/ http://myolympus.org/ photo sharing site |
#15
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DSLR resolution suffers by about 20% when electronic shutter not used with mirror up
In article ,
RichA says... On Sunday, 28 January 2018 00:41:23 UTC-5, Alfred Molon wrote: In article , PeterN says... On 1/27/2018 6:28 PM, Eric Stevens wrote: On Sat, 27 Jan 2018 10:57:29 +0100, Alfred Molon wrote: In article , Eric Stevens says... With the E-M1 II in high res mode (80 MP) it's not sufficient to disable the mechanical shutter (i.e. use the electronic shutter). You need a wireless shutter release and you also have to disable the autofocus, because the AF motor movements in the lens generate vibrations. And don't forget the concrete foundations. Doesn't have to be concrete. Can by anything, also sand or mud, as long as it doesn't move. " ... as long as it doesn't move" That's why I always use concrete. I've seen idiots set up a tripod on boats. It eliminates some motion (camera shake due to shaking hands). -- Alfred Molon Olympus E-series DSLRs and micro 4/3 forum at http://tech.groups.yahoo.com/group/MyOlympus/ http://myolympus.org/ photo sharing site High frequency shake. Does nothing for low-frequency ocean motion, vibration from engines, etc. Actually the vibration from the engines is high frequency shake. The body movement is more of a low frequency thing. -- Alfred Molon Olympus E-series DSLRs and micro 4/3 forum at http://tech.groups.yahoo.com/group/MyOlympus/ http://myolympus.org/ photo sharing site |
#16
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DSLR resolution suffers by about 20% when electronic shutter not used with mirror up
On Sat, 27 Jan 2018 17:01:33 -0800 (PST), RichA
wrote: On Friday, 26 January 2018 23:45:35 UTC-5, Savageduck wrote: On Jan 26, 2018, Eric Stevens wrote (in ): On Fri, 26 Jan 2018 11:48:15 -0800, Savageduck wrote: On Jan 26, 2018, Alfred Molon wrote (in . com): In iganews.com, Savageduck says... The solution is simple; Go mirrorless! With the E-M1 II in high res mode (80 MP) it's not sufficient to disable the mechanical shutter (i.e. use the electronic shutter). You need a wireless shutter release and you also have to disable the autofocus, because the AF motor movements in the lens generate vibrations. Still no problem: No flappy mirror - check! Electronic shutter - check! Wireless shutter release - check! Manual focus with peak focusing - check! As long as that pesky flapping mirror is not an issue the problem is solved. Unless of course you have chosen to stick with a DSLR. Still no problem with my D750. Select Mup (mirror up) - select. Live View in action. No electronic shutter. See note below. Noted. Wireless shutter release - check Good. Focus peaking (of a kind) - check. See https://www.dpreview.com/forums/post/57292217 Close, but not quite as effective, and useful as true focus peaking. However, for the type of shot that all of this procedure is intended for you would be using Live View, and it should be good enough. Heavy! Vibrate it if you can - check. Always possible. Note, this discussion brought on us by Rich, and the geeky article he discovered, is going to be a minimal issue for those photographers with the appropriate knowledge, and skills regardless of the camera type in use. The results of any minimal vibration is going to need some serious pixel-peeking to detect. Note: I'm not keen on electronic shutters. They can lead to image distortion with action shots and they are reputed to shorten the life of the sensor. Electronic shutters have their place, and provide an option over a mechanical shutter. However, as you have noted, when it comes to action shots where the shutter speed has been pushed, rolling shutter effect comes into play with all the unwanted distortion that brings. Though there are times those effects can be amusing. For the type of shot where the camera is tripod mounted, the subject is static, and vibration is to be minimized, the electronic shutter can be appreciated. Without an electronic shutter, there is no way to rid a camera of all vibration. Modern Photography once bolted cameras to a concrete wall to try to eliminate it. At some point, long before an electronic shutter camera experiences it, a camera with mechanical shutter will blur the image. The only variable left with an electronic shutter shot is human hands holding a camera. Also, even on a tripod, any strong wind will induce some vibration which would impact any camera. It also depends on the viewing angle of the lens and the number of pixels in the image. -- Regards, Eric Stevens |
#17
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DSLR resolution suffers by about 20% when electronic shutter not used with mirror up
On Sat, 27 Jan 2018 18:44:32 -0500, PeterN
wrote: On 1/27/2018 6:28 PM, Eric Stevens wrote: On Sat, 27 Jan 2018 10:57:29 +0100, Alfred Molon wrote: In article , Eric Stevens says... With the E-M1 II in high res mode (80 MP) it's not sufficient to disable the mechanical shutter (i.e. use the electronic shutter). You need a wireless shutter release and you also have to disable the autofocus, because the AF motor movements in the lens generate vibrations. And don't forget the concrete foundations. Doesn't have to be concrete. Can by anything, also sand or mud, as long as it doesn't move. " ... as long as it doesn't move" That's why I always use concrete. I've seen idiots set up a tripod on boats. There is alway something like this ... http://www.tylermount.com/minigyro-vs-gyrobot.html -- Regards, Eric Stevens |
#18
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DSLR resolution suffers by about 20% when electronic shutter notused with mirror up
On 1/28/2018 5:54 PM, Eric Stevens wrote:
On Sat, 27 Jan 2018 18:44:32 -0500, PeterN wrote: On 1/27/2018 6:28 PM, Eric Stevens wrote: On Sat, 27 Jan 2018 10:57:29 +0100, Alfred Molon wrote: In article , Eric Stevens says... With the E-M1 II in high res mode (80 MP) it's not sufficient to disable the mechanical shutter (i.e. use the electronic shutter). You need a wireless shutter release and you also have to disable the autofocus, because the AF motor movements in the lens generate vibrations. And don't forget the concrete foundations. Doesn't have to be concrete. Can by anything, also sand or mud, as long as it doesn't move. " ... as long as it doesn't move" That's why I always use concrete. I've seen idiots set up a tripod on boats. There is alway something like this ... http://www.tylermount.com/minigyro-vs-gyrobot.html I am very familiar with gyros. i was talking about tripods, which will only transmit the boat motion to your camera, unless you have a gyro built into the tripod. IMHO the Kenyon works quite well, and can be hand held. https://www.ken-lab.com/ -- PeterN |
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