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Sony Alpha a7s: Full HD Recording in XAVC and 4:2:2 UHD 4K Output via HDMI.


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Old October 24th, 2015, 07:08 AM   #1
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To much noise in picture on A7S II?

Last week I got my copy of the Sony A7s 2. Last night I've finally had time to test it out in a dark environment and what I noticed is that there was pretty much noise in my picture. If I look at other samples on for example vimeo I have the idea that the noise is a lot less then what I got.

Does anybody have an idea what the problem might be or am I just expecting to much?

Setup:
Canon 16-35 F2.8 with the Metabones Mark IV

Camera settings where this shot was filmed in:
Manual mode @ 4k 25p
F2.8
1/50th
No Picture profile set
I start at 8.000 ISO

Download link from my footage:
http://we.tl/UtiyG2N3Al

Some Iso tests from Philip Bloom:
https://philipbloom.wetransfer.com/d...0231927/7612c0

(download original)
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Old October 24th, 2015, 07:18 AM   #2
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Re: To much noise in picture on A7S II?

I think you are expecting too much, 80.000 iso looks the same as 6400 iso on my gh3...
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Old October 24th, 2015, 08:26 AM   #3
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Re: To much noise in picture on A7S II?

Looks great to me at 12000 looks great... Bloom has used neat video on that\t for sure and don't forget there are more lights he is aiming at so it would naturally be better, you are in pretty much pitch black so in that regard looks good mate.
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Old October 24th, 2015, 04:52 PM   #4
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Re: To much noise in picture on A7S II?

Coming from an A7S user, that looks great! Much less noise now.
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Old October 26th, 2015, 01:49 AM   #5
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Re: To much noise in picture on A7S II?

Online video compression SMOOTHS video grain/noise. On my little X70, I can feed live h264 from a TVU backpack and on air 33db gain looks very smoothed out. I tend to gain the heck out of things I know will be highly compressed h264.

Paul
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