rhlpetrus
Forum Pro
I downloaded the NEFs and opened them with CNX-D.
1. ISO64 shows a different focus point as the D810's, it's backfocused by comparison, it's clear if one looks at the green leaves on the right. This affects detail all over the image. D850 on the right. Better seen on original.
Another point: they used different lenses, on D810 and D850, not a good way to start a test.


2. ISO 6400 and 12800 are actually 25600 and 51200, so don't panic, IR will likely correct that soon.
But
IMO noise is mushier in D850 high ISO files, even turning all NR off, see the ISO25600 comparison with D810 (see original).

I can't say if there is an improvement or not in high ISO, looking at these I see just different character, maybe ACR will show a different result. I prefer clean, crisp noise, as it tends to disappear in printing and preserve finer detail. Here's ISO3200:

Looks slightly cleaner on the D850, but closer inspection in full size will show again that it's mostly an effect of the different character of noise with CNX-D.
--
Renato.
http://www.flickr.com/photos/rhlpedrosa/
OnExposure member
http://www.onexposure.net/
Good shooting and good luck
(after Ed Murrow)
1. ISO64 shows a different focus point as the D810's, it's backfocused by comparison, it's clear if one looks at the green leaves on the right. This affects detail all over the image. D850 on the right. Better seen on original.
Another point: they used different lenses, on D810 and D850, not a good way to start a test.


2. ISO 6400 and 12800 are actually 25600 and 51200, so don't panic, IR will likely correct that soon.
But
IMO noise is mushier in D850 high ISO files, even turning all NR off, see the ISO25600 comparison with D810 (see original).

I can't say if there is an improvement or not in high ISO, looking at these I see just different character, maybe ACR will show a different result. I prefer clean, crisp noise, as it tends to disappear in printing and preserve finer detail. Here's ISO3200:

Looks slightly cleaner on the D850, but closer inspection in full size will show again that it's mostly an effect of the different character of noise with CNX-D.
--
Renato.
http://www.flickr.com/photos/rhlpedrosa/
OnExposure member
http://www.onexposure.net/
Good shooting and good luck
(after Ed Murrow)
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