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General Photography
Balancing Exposure and Processing
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<blockquote data-quote="J-see" data-source="post: 433690" data-attributes="member: 31330"><p>I had to kill time so I decided to push the D810 and check how it performs when using ISO vs post adjustments. Since the cam uses a double amplifier, it is a bit different than the D750 and I need to test it all. The results are not surprising when it comes to noise but at lower ISO it did make me frown.</p><p></p><p>I shot all four once at correct exposure using ISO and the other at the same A/S but at native ISO 64 and adjusted exposure in post. No processing done besides cropping, WB and exposure. All 100% crop of shots in reasonable low light conditions.</p><p></p><p>ISO 800 vs 64 post-exposed:</p><p></p><p>[ATTACH]147717[/ATTACH]</p><p>[ATTACH]147718[/ATTACH]</p><p></p><p>ISO 1600 vs 64 post-exposed:</p><p></p><p>[ATTACH]147719[/ATTACH]</p><p>[ATTACH]147720[/ATTACH]</p><p></p><p>ISO 3200 vs 64 post-exposed:</p><p></p><p>[ATTACH]147721[/ATTACH]</p><p>[ATTACH]147722[/ATTACH]</p><p></p><p>ISO 6400 vs 64 post-exposed:</p><p></p><p>[ATTACH]147723[/ATTACH]</p><p>[ATTACH]147724[/ATTACH]</p><p></p><p>The 800 makes me wonder what's going on.</p><p></p><p>Apparently the chained amplifiers work differently from 64-1000 and >1000. That gives me 4 stops I can shoot at native ISO and if I need more, I best use the cam's ISO since it'll do a cleaner job than I can do in post.</p><p></p><p>If I compare with some shots I took with the D750 at higher ISO, it shows that it is cleaner than the D810.</p></blockquote><p></p>
[QUOTE="J-see, post: 433690, member: 31330"] I had to kill time so I decided to push the D810 and check how it performs when using ISO vs post adjustments. Since the cam uses a double amplifier, it is a bit different than the D750 and I need to test it all. The results are not surprising when it comes to noise but at lower ISO it did make me frown. I shot all four once at correct exposure using ISO and the other at the same A/S but at native ISO 64 and adjusted exposure in post. No processing done besides cropping, WB and exposure. All 100% crop of shots in reasonable low light conditions. ISO 800 vs 64 post-exposed: [ATTACH=CONFIG]147717._xfImport[/ATTACH] [ATTACH=CONFIG]147718._xfImport[/ATTACH] ISO 1600 vs 64 post-exposed: [ATTACH=CONFIG]147719._xfImport[/ATTACH] [ATTACH=CONFIG]147720._xfImport[/ATTACH] ISO 3200 vs 64 post-exposed: [ATTACH=CONFIG]147721._xfImport[/ATTACH] [ATTACH=CONFIG]147722._xfImport[/ATTACH] ISO 6400 vs 64 post-exposed: [ATTACH=CONFIG]147723._xfImport[/ATTACH] [ATTACH=CONFIG]147724._xfImport[/ATTACH] The 800 makes me wonder what's going on. Apparently the chained amplifiers work differently from 64-1000 and >1000. That gives me 4 stops I can shoot at native ISO and if I need more, I best use the cam's ISO since it'll do a cleaner job than I can do in post. If I compare with some shots I took with the D750 at higher ISO, it shows that it is cleaner than the D810. [/QUOTE]
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