Archived posting to the Leica Users Group, 2005/10/14

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Subject: [Leica] #351 & #352
From: jblack at ambio.net (John Black)
Date: Fri Oct 14 08:32:08 2005
References: <008701c5cef9$6f6fbea0$cdde4454@desktop><434D8218.4020802@summaventures.com><03fc01c5d03b$daf0f700$2501a8c0@chartertn.net> <p0623090bbf748aee3e45@[10.0.1.4]>

> The spectral sensitivity of the chromogenic films is much closer to
> what our eyes see, and what colour film sees than what most B&W film
> sees

Looking at the published spectral sensitivity curves for T400CN and the
traditional B&W silver films (Tri-X mostly) gave that indication so I
figured that my set of colored filters that worked well with Tri-X would at
least have some of the same effect with the C41 products.  In actual
practice, there seemed to almost no effect at all. Of course I was letting a
pro lab do my dev/printing with the T400CN and I did my own with TX, but I
swear I could put my dark red filter on and not get nearly the darkening of
the blue sky that GeeBee shows in his wonderful landscapes.

Actually, I'm happier now with traditional silver film and the darkroom
anyway, but it still aggravates me as to why this effect was not as it
should have been with the chromogenics in my hands.

JB


Replies: Reply from don.dory at gmail.com (Don Dory) ([Leica] #351 & #352)
In reply to: Message from geebee at geebeephoto.com (GeeBee) ([Leica] #351 & #352)
Message from pdzwig at summaventures.com (Peter Dzwig) ([Leica] #351 & #352)
Message from jblack at ambio.net (John Black) ([Leica] #351 & #352)
Message from henningw at archiphoto.com (Henning Wulff) ([Leica] #351 & #352)