[alt-photo] Re: 3 color gum and PDN calibration?

Loris Medici mail at loris.medici.name
Thu Sep 27 08:30:46 GMT 2012


Indeed, I judge most yellows by scanning the test strip and using the
Blue Channel of the scan. (Likewise, sometimes, I use the Red Channel
for Cyanotype...)

Regards,
Loris.


2012/9/27 Henry Rattle <henry.rattle at ntlworld.com>:
> Just in case it's relevant here, I found it impossible to judge the yellow
> under fluorescent light of any kind. There are quite a lot of missing
> wavelengths in the yellow region of fluorescent tubes/energy-saving bulbs,
> so you don't get a true impression.
> ...


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