Re: Does MF color slides scanning in 24 bit still make sense
Re: Does MF color slides scanning in 24 bit still make sense
- Subject: Re: Does MF color slides scanning in 24 bit still make sense
- From: MARK SEGAL <email@hidden>
- Date: Thu, 14 Jan 2016 22:31:06 +0000 (UTC)
Excellent demo Rich - indicates to Paul that if he captures his Velvia media in raw format with his Sony camera and opens them in LR or PS in "16-bit" ProPhoto he should expect more vibrant and perhaps more detailed renditions than would often be displayed from his sRGB scans of yesteryear.
Mark
From: Rich Wagner <email@hidden>
To: email@hidden
Sent: Thursday, January 14, 2016 3:39 PM
Subject: Re: Does MF color slides scanning in 24 bit still make sense
On Wednesday, January 13, 2016 6:43 PM, Andrew Rodney <email@hidden> wrote:
> On Jan 13, 2016, at 2:47 PM, Paul Schilliger <email@hidden> wrote:
>>
>> Where would a piece of Velvia stand, for instance say between sRGB and ProPhoto RGB?
>
> You'll want to compare the scanner profile to those and probably just work with high bit RGB in the scanner color space anyway. You don't have to convert to either.
I agree that you’ll want a high-bit scan, and it will initially be in the scanner space, but of course you will want to convert from scanner space to a standard working space before editing.
I have some old (2004) 3D gamut plot comparisons of scanned Velvia from an HTC target using a Nikon LS-4000 scanner vs AdobeRGB and ProPhoto. Scanned Velvia clearly exceeds the gamut of AdobeRGB. I also plotted the reference points from the HTC target for comparison.
http://www.wildnaturephotos.com/Public/Gamut.html
Hope that’s helpful.
—Rich Wagner
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