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<blockquote data-quote="Fortkentdad" data-source="post: 627360" data-attributes="member: 24285">[ATTACH]259722[/ATTACH]These are swift birds - this one done at 1/6400.I have pushed the ISO but very high (over 3000 IMHO) is OK if you don't crop-a-lot.&nbsp; But if you are shooting small birds and the final image is 1/20th of the full frame or less, then the high iso grain will show.&nbsp; Or at least it does for me.&nbsp; Some of this can be corrected with software (I like the NIK collection dfine best but there are many)&nbsp; However there is a loss of detail.&nbsp; So the grain is less, but so are the fine feather details.&nbsp; &nbsp;[ATTACH]259723[/ATTACH]This is an approximate on the amount of crop on the photo above. The closer you crop, the more grain you will see - and this was at 1600.&nbsp; ISO is only one factor but as I understand it the main determinant of grain.&nbsp; That and the quality of these sensor, which with a D500 is about as good as you can expect with current crop of cameras. [ATTACH]259724[/ATTACH][ATTACH]259725[/ATTACH]Mega crop - certainly usable.&nbsp; again at only 1600 ISO. At least that is how I understand it.</blockquote>

[QUOTE="Fortkentdad, post: 627360, member: 24285"] [ATTACH=CONFIG]259722._xfImport[/ATTACH] These are swift birds - this one done at 1/6400. I have pushed the ISO but very high (over 3000 IMHO) is OK if you don't crop-a-lot. But if you are shooting small birds and the final image is 1/20th of the full frame or less, then the high iso grain will show. Or at least it does for me. Some of this can be corrected with software (I like the NIK collection dfine best but there are many) However there is a loss of detail. So the grain is less, but so are the fine feather details. [ATTACH=CONFIG]259723._xfImport[/ATTACH] This is an approximate on the amount of crop on the photo above. The closer you crop, the more grain you will see - and this was at 1600. ISO is only one factor but as I understand it the main determinant of grain. That and the quality of these sensor, which with a D500 is about as good as you can expect with current crop of cameras. [ATTACH=CONFIG]259724._xfImport[/ATTACH] [ATTACH=CONFIG]259725._xfImport[/ATTACH] Mega crop - certainly usable. again at only 1600 ISO. At least that is how I understand it. [/QUOTE]

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