| Joined: | Thu Apr 19th, 2012 |
| Location: | United Kingdom |
| Posts: | 4424 |
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Eric that Blackbird is amazing I have never pushed ISO like that. Good to see your interesting images Jeff thanks for sharing them with us.
If you zoom in on the branch around it's claws you can see how noisy the whole image was before I de noised the background. I haven't done any noise reduction on the bird or it's perch. I did remove one or two hot pixels (chromatic dots) that were visible on the black bird but left the rest of the bird unmolested.
I get the impression that the appearance of intrusive noise seems to occur above ISO 3000 on the D850. But the incremental amount of noise doesn't seem to be 8x the problem at 25000.
Think I've mentioned this before; the ISO level for obvious noise appearance hasn't changed much from the old days...eg iso1600. It would have been nice to have noise free images up at iso5000, (comparable to the old iso 400) on newer cameras, but it seems as though all the noise control improvement has gone at the higher levels and the middle ground (eg iso2000-6000) less so.
Last edited on Tue Mar 10th, 2020 10:31 by Eric
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Eric