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It was 1/100.What shutter speed did you use? TIA.
When you use the silent shutter, the camera returns to 12bits colors instead of 14bits; adds that plus perhaps a higher ISO (? No indication as to whether it was handheld or on tripod) and you get banding instead of subtle tones gradations. Interesting that the banding is vertical and not horizontal. May be because he used the camera in vertical mode.Thanks Mike. How exactly does this happen? No problem with EFCS? TIA.
Thanks Annna. Those are pretty sharp vertical lines I see on the left side. I think you explained the vertical. But why so sharp? TIA.When you use the silent shutter, the camera returns to 12bits colors instead of 14bits; adds that plus perhaps a higher ISO (?) and you get banding instead of subtle tones gradations. Interesting that the banding is vertical and nit horizontal. May be because he used the camera in vertical mode.
Thanks Annna. Those are pretty sharp vertical lines I see on the left side. I think you explained the vertical. But why so sharp? TIA.
Couldn't one map them out though?
So, in natural light one shouldn't have this particular problem?
Are there any limitations using EFCS?...With EFCS you will not have the same problem....
Thanks for your explanation. It makes sense. But I'm wondering : we aren't in a closed room with only a few lights, but in open space, with many many different lights, some brighter, some weaker, some reddish, some yellowish and some very white. So are they all flickering at the same rhythm, even if they comes from different sources and different technologies ? Are they not cancelling each others ? Or may be the brightest one dominates all the others ?Hi,
With the electronic (silent) shutter the sweep is slow. Light is oscillating with AC-voltage. So what you see is variation of light during exposure.
With EFCS you will not have the same problem.
Best regards
Erik
Thanks for your explanation. It makes sense. But I'm wondering : we aren't in a closed room with only a few lights, but in open space, with many many different lights, some brighter, some weaker, some reddish, some yellowish and some very white. So are they all flickering at the same rhythm, even if they comes from different sources and different technologies ? Are they not cancelling each others ? Or may be the brightest one dominates all the others ?
EFCS works well up to 1/2000 sec exposure. Beyond that the shutter will start to be seen on one side of the image. Need to turn it off at that point.Are there any limitations using EFCS?
TIA
Thank you.EFCS works well up to 1/2000 sec exposure. Beyond that the shutter will start to be seen on one side of the image. Need to turn it off at that point.
No idea how Panasonic do it.Of late, I have been using a Panasonic GM1 (only e shutter with non system lenses) and am yet to see any banding! AFAIK, there is no global shutter involved.
The Sony A7s (silent shutter) is unpredictable. Under multiple lights, no signs of banding.
IIRC Jim Kasson now recommends to use the mechanical shutter for speeds faster than 1/1000 s to avoid uneven exposure.EFCS works well up to 1/2000 sec exposure. Beyond that the shutter will start to be seen on one side of the image. Need to turn it off at that point.
If the banding is AC cycle originated ( which I have no reason to doubt) can't it be avoided using silent shutter at a shutter speed above the cycle like we do with regular shutters and flor lighting in studios to cancel the 60 cycle hum banding?
Just thinking aloud... I never use silent shutter anyway but did learn early how to eliminate 60 cycle hum in my studio images with shutter speeds.