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Digital BW, The Print

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Re: [Digital BW] Re: Optimal RIP gamma - was how many shades of grey?

2005-06-17 by Steve Kale

I don't think the QTR-Gray Lab was the advance.  In fact, I don't use it any
more.  This is because I can convert from any workspace to one of Roy's two
printer profiles before sending the file values to the printer.  At any
rate, if you are not using colour management a workspace of L* is still not
close to the profile of a greyscale matte paper with linearised L* values.
Gray gamma 2.2 is a better match and gray gamma 2.05 even better.

Roy, have you had a chance to look further at the media white point settings
(wtpt tags) of the ICC profiles and whether this helps the highlight
clipping issue you mentioned?  Also the new Epson's are getting dMax of
L*3.3 whereas I think you chose 7 (12 for matte)...?


> From: Ernst Dinkla <E.Dinkla@...>


> That Roy gave us the Lab space to work in is the real
> step forward, the gamma issue is nice for long threads.
> 
> Ernst

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