NEX-5 Video - crazy shutter speeds.

Started Jan 29, 2011 | Discussions thread
alpi
Forum MemberPosts: 56
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Re: NEX-5 Video - crazy shutter speeds.
In reply to danw82, Jan 31, 2011

That would make more sense. I just wondered if maybe DVMP was mis-interpreting or missing metadata resulting in a constant gain figure being reported.

Just downloaded it and gave it try myself on a range of short clips. It gave gain figures from 3 dB to 27 dB in a range of conditions from bright to low light which would be roughly what you would expect.

danw82 wrote:

alpi wrote:

Just curious , how do you know NEX records at constant ISO 200 ?
(Is it showing up as gain figure in DVMP ?)

I've not done anything to back up the observation, but I got the impression that if the video would otherwise underexpose even at 1/50 shutter, or whatever the minimum is for video, that it automatically cranked the gain/iso to compensate. I've tried shooting the same video in poor lighting with f1.7 and f5.6, and the f1.7 video came out with noticably lower noise.

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