Sebastien Ross Posted October 3, 2014 Author Share Posted October 3, 2014 Are you sure that the exposure is the exact same when you change the iso or is it changing when you drop the shutter and see it more clearly. Whether it is buried in the shadows or not is maybe why you don't see it? I wasn't keeping the exposure at the same level, just dropping the shutter to film in moonlight condition. Quote Link to comment Share on other sites More sharing options...
mojo43 Posted October 3, 2014 Share Posted October 3, 2014 That's what I am saying. So the exposure is getting lighter when you drop the shutter and therefore you can see it more clearly. Is that possible? Quote Link to comment Share on other sites More sharing options...
johnnymossville Posted October 3, 2014 Share Posted October 3, 2014 So much for the light leak theory. That looks like a serious defect to me, you might want to return it to Sony to get fixed, if possible. Quote Link to comment Share on other sites More sharing options...
mojo43 Posted October 3, 2014 Share Posted October 3, 2014 But it sounds like all of the cameras are exitbiting this issue! It's not really a problem until you are at the last of the iso range. Quote Link to comment Share on other sites More sharing options...
dahlfors Posted October 3, 2014 Share Posted October 3, 2014 Light leaks can come through camera bodies sometimes as well. Canon 5D Mk III had a light leak that could be fixed by using black tape to cover a part of the camera body.To rule out a light leak on the camera body itself, try shooting with it inside a dark bag.But yes, this is likely sensor-related. Quote Link to comment Share on other sites More sharing options...
Brian W. Allan Posted October 4, 2014 Share Posted October 4, 2014 Hi guys, I've been testing a lot the a7s in low light and I've ran into some purple noise issue coming from the sensor. Sony canada is pretty useless about that... https://www.youtube.com/watch?v=zpvACzU1Nj0&feature=youtu.be I've tested it with 5 different A7s, they all do the same...In video mode, going under 1/50th with iso higher than 12 800, always give me that purple fringing (not as bad as the youtube video...witch is at the worst setting, but still, it's a bit frustrating) Technically, i know it doesn't respect the 180degree rule going under 1/50th for 24p/25p...but it could be useful is certain situation. At first, they blame the metabones ...just like everyone (ex: > ) But after testing it with sony native FE lens....or with the body cap on... it's definitely not from light leak. What do you think about that? Thank you Quote Link to comment Share on other sites More sharing options...
mojo43 Posted October 4, 2014 Share Posted October 4, 2014 Interesting, thanks for the information. Quote Link to comment Share on other sites More sharing options...
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