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David Kieltyka
Veteran Member
If anyone had any idea you'd be reading about it.
-Dave-
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Stflbn
Senior Member
Show us a few of the photos you've taken that require lossless raw please.
Spunky8
Senior Member
How do you know this? The a7s records continuous shutter shots and silent shutter shots at 12-bits, but never records data that fully populates a 14-bit histogram.
Jim
Spunky8
Senior Member
My question: if there were a general consensus as to who are the best professional photographers in the world and ow we asked each whether any of this stuff mattered, what would they say? I think the responses would be 100% the same.
Same thing with A7R II. There was this ISO 100 RAW file available for download for a day or so before it was remowed and I checked that one with RAWDigger: even at the low levels the histograms were still not fully populated, just 13 bits just like the previous models.
PZZ
Member
I just switched to sony from nikon and I'm very happy but the first pictures I took with A7II were bags of coffee in studio (flash + 90mm macro) and I got something very surprising, kind of jpeg compression artifacts around text and moire.
I shoot the same bags a week before with a nikon d610 and there were no problems, so I think in part the problem is raw compression.
(the following screen capture are taken in PNG so what you see is what I get from Lr, maybe watch the original file and not the preview)
3x
Last edited:
I just switched to sony from nikon and I'm very happy but the first pictures I took with A7II were bags of coffee in studio (flash + 90mm macro) and I got something very surprising, kind of jpeg compression artifacts around text and moire.
I shoot the same bags a week before with a nikon d610 and there were no problems, so I think in part the problem is raw compression.
(the following screen capture are taken in PNG so what you see is what I get from Lr, maybe watch the original file and not the preview)
3x
The reason probably is that the D610 anti-aliasing filter is stronger then the one in the A7II.
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Tommie
PZZ
Member
thank you but I'm not much worried by the moire, I can take it away in capture one, my biggest problem are the compression artefacts inside text, looks like a medium quality jpeg, not a raw.
Also on the left where is moire there is a lot of compression
Also on the left where is moire there is a lot of compression
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Beaverhelmet
Senior Member
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+1
In this case I believe it is a matter of simple moire. The coffee bag is probably printed with a coarse offset printing technique, and the gradient towards the sides contain some halftone screens. Problematic subject with a AA-less camera and sharp optics.
naththo
Leading Member
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