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Digital BW, The Print

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Message

Re: neutral BW w colour inks

2001-08-07 by tyork@accesscable.net

It sounds like a selenium-toned duotone print. This can be a very 
acceptable solution or alternative to a second printer. Especially if 
you like selenium-toned prints with the deep blacks and the mid-grays 
that are drop dead gorgeous. Way ta go !!!!!!

Tim










--- In DigitalBlackandWhiteThePrint@y..., Robert Bollini 
<rbollini@n...> wrote:
> Martin Wesley recently suggested a simple device for producing 
neutral
> BW prints from a set of colour inks. Perhaps derived from the 
referenced
> article by Caponegro fils in which he apparently argued the use of
> PShop levels, Martin suggested that one might begin with the blue 
and
> red channels each set to 1.0.
> 
> This morning I fired up my Win98SE rig, profiled with Photocal and
> ProfilerRGB, and driving an Epson 1160 using Jon Cone's 
Darngoodink. In
> PShop 6.0, I opened a coloured image of ferns in the forest taken 
with a
> Canon G1 digital camera. I used channel mixer, a couple of curves
> adjustment layers, and the high pass sharpener, and only then 
adjusted
> the gamma with layers as above. Printing on Epson Photo Paper (Yay
> Costco! 28c Canadian per 8.5x11 sheet!) at about 6x8 in., I found 
the
> print too red.  I returned to the snapshot I had made before 
tinting the
> image in levels, and set red to 1.05 and blue to 1.12.
> 
> Now I've tried all the stunts -- Reichman's, Fraser's, and a hatful 
of
> other helpful volunteers. None of them gave me a print anywhere 
near as
> neutral as this one as it emerged from the gullet of the 1160. In
> daylight it's just about perfect, and betrays only the slightest 
hint of
> purple under tungsten: no more metamerism, in other words, than the
> prints I toned in selenium many years ago. A fluke? Maybe. I'll let 
you
> know. So far, pretty exciting. Thanks, Martin.
> Bob Bollini

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