I approve nothing.
I express bewilderment, why on ISO 640 above ON my 7D m II unacceptable noise?
Example:
http://www.deryabino.ru/ptaha/20150317/20150317f.html
ISO the 800, first photo - resize, the second photo crop of 100%.
Without correction.
I Schatat that noise in the photo very big.
My point being "unacceptable" in what sense? If you printed the photo at a decent size, even with a degree of cropping, what would be the impact on an observer
of that print? If the noise,
in that print (assuming you do proof-print), were in any way significant, what woud be the impact after an appropriate amount of post-processing for selective noise reduction (and possible selective sharpening)?
If the print looks good, and the customer likes it, is there a problem? Really??
That, of course, assumes that you are printing the photos. If you are not printing, the next question becomes: what is the impact of the noise, at original size,
in it's final re-sized usage after applying an
appropriate down-sizing algorithm (which, if it is actually appropriate, will reduce noise in the resized output)? Every electronic/web usage I've ever seen is considerably down-sized from modern camera originals, and the noise reduction, simply through downsizing, makes even rather horridly noisy photos look quite good enough (afterwards).
Or is it that your objective is to look at the photo at 100% of of original size on-screen and complain about noise? If it's the latter, and if you are picky enough, no possible photo will do. (Of course, if pixel-peeping and complaining about noise, regardless of final usage, is what floats your boat then go for it. Complain away! Actual perfection, being unachievable, will always elude you so you'll be able to complain about everything, forever. If that works for you then so be it.)
"Acceptable" levels of noise are, always, a matter for judgement (on which different people may differ) but also a matter of final usage, which often is far less so. If you can see "unacceptable" noise in a 100% pixel-peeping exercise on-screen, but cannot see it in a printed photo of the intended size at the intended viewing distance, then is it really unacceptable?
My suspicion is that your answer to the last question is "yes" - if you can see it on-screen at 100% then it
is unacceptable, to you,
regardless of whether it can be seen in a print. Your example of "unacceptable" noise, posted above, would be barely visible in an 19"x13" print and easily corrected if it were in any way distracting. It would likely need a degree of correction if printed larger, but again that correction would be quite simply performed. Yet I doubt that matters to you.
It does matter to me - if it can't be seen in the printed output, and the person who wants the print on their wall is happy, then I think the result is acceptable. I get that you don't, though I can't say I understand why.
From what you've written, I doubt we will ever agree about that. You may well be "right" about it, and I may be "wrong". If the people with my photos on their walls are happy with them, though, I don't care either way.
...Mike
