I frequently use spot colour negatives in addition to RGB separation to add sparkle to the final print. A perfect example would the beed the green seaweed picture that we discussed a few days ago when colour can be added to a very small object or only part of the picture.
Marek
> Date: Fri, 31 Aug 2007 08:06:34 -0600 > From: mkochsch@shaw.ca > Subject: Re: Gum Negs: CMYK, RGB or "Spot" Colour - the link...!!! > To: alt-photo-process-l@usask.ca > > Actually this link works better still...thanks. This is very similar to what > I was thinking. > > http://www.grupponamias.com/index_en.html?http://www.grupponamias.com/art_101_en.html > > ~m > > ----- Original Message ----- > From: <davidhatton@totalise.co.uk> > To: <alt-photo-process-L@usask.ca> > Sent: Friday, August 31, 2007 6:26 AM > Subject: Re: Gum Negs: CMYK, RGB or "Spot" Colour - the link...!!! > > > > > > Sorry, > > > > http://www.grupponamias.com/index_en.html > > > > > > On Aug 31 2007, Michael Koch-Schulte wrote: > > > > Is there anyone on the list using strickly "Spot Colour" negs instead of > > CMY(k) or RGB negs in Gum? I've been poking around the T-Shirt printing > web > > sites (still looking for inks and transparency materials) and this seems > to > > be a common way of separating colour in a photo editor when printing with > > screens. It's common to see them using six or more spot colours to achieve > > the "look" they want. Is anyone combining the two methods? I was thinking > a > > metallic silver layer to pump up the reflectivity of a piece I'm doing > that > > has the silver scales of fish in the subject. > > > > ~m > > > > RNP Arrays: Open Source Digital Negative Project > > www.inkjetnegative.com > > > > > > >
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