Julius Bjornsson Posted September 15, 2007 Share #1 Posted September 15, 2007 Advertisement (gone after registration) I have been trying out all the ISO settings on the M8 and found that the noise reduction kicks in at a certain low shutter setting. Now my question is why does this not kick in when I turn up the ISO as well? When I try out ISO 1250 or 2500 this option does not kick in,even though that would be good. The noise reduction works great at low shutter speeds, why not at high ISO where the noise is really bad? Someone explain please? Link to post Share on other sites More sharing options...
Advertisement Posted September 15, 2007 Posted September 15, 2007 Hi Julius Bjornsson, Take a look here A simple question?. I'm sure you'll find what you were looking for!
Irakly Shanidze Posted September 15, 2007 Share #2 Posted September 15, 2007 have you shot at ISO2500 and 1/250 of a second? try it, and question will fade away by itself, provided the exposure was right Link to post Share on other sites More sharing options...
Shootist Posted September 16, 2007 Share #3 Posted September 16, 2007 I have been trying out all the ISO settings on the M8 and found that the noise reduction kicks in at a certain low shutter setting. Now my question is why does this not kick in when I turn up the ISO as well? When I try out ISO 1250 or 2500 this option does not kick in,even though that would be good. The noise reduction works great at low shutter speeds, why not at high ISO where the noise is really bad? Someone explain please? It's a different type/kind of noise when using a long shutter speed. What the camera does is it take a second shot that is a black frame and looks at the noise (Hot pixels) in the black frame and subtracts the noise (Hot pixels) from the real photograph. Link to post Share on other sites More sharing options...
gmaurizio Posted September 16, 2007 Share #4 Posted September 16, 2007 I have been trying out all the ISO settings on the M8 and found that the noise reduction kicks in at a certain low shutter setting. Now my question is why does this not kick in when I turn up the ISO as well? When I try out ISO 1250 or 2500 this option does not kick in,even though that would be good. The noise reduction works great at low shutter speeds, why not at high ISO where the noise is really bad? Someone explain please? Julius, since you are a Nikon D200 user, you will find it does the same whenever the exposure time is longer than a second. As it was said before, the camera substracts a dark image that generates sensor noise from your picture. Link to post Share on other sites More sharing options...
marknorton Posted September 16, 2007 Share #5 Posted September 16, 2007 On my Nikon, it says "Job nr" while this is happening which I, being a bit of a dummy, thought meant "Job Number" but actually means "Job Noise Reduction". Still pretty meaningless come to think of it. Link to post Share on other sites More sharing options...
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