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Forum: Pentax SLR Lens Discussion
01-26-2011, 05:10 AM
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I see this topic is very old, but it is interesting for me, too. I have a Jupiter 9, 85mm f/2.0 lens and I've noticed that unresized images appear very noisy at ISO800. So, I find the question very pertinent. I asked myself also many times. I might be wrong, but I have some suppositions:
- the lens chemicals (coatings) might reduce/amplify the resulted image noise
- the lens resolution might contribute also with "details"
- more noise doesn't necessarily mean worse final image
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