Auteur: philippe melchior
Date: 06-01-2005 17:49
D'autres témoignages
Source; http://www.largeformatphotography.info/lfforum
Quad-toneRip is as relevant to LF as any darkroom technique.
--QT Luong, 2004-08-05
You also won't be able to make a neutral, matamerism-free black and white print using color inks. Unless you buy a second printer, dedicating one to color and one to black and white with quadtone inks such as those sold by MIS Associates, you'll have to try either printing black only (which produces surprisingly good results but I think there's some fading or discoloration problems using the black ink in the 1280, even the MIS Eboni black) or investing in a RIP. Until recently the least expensive RIP was ImagePrint for about $500. But now for $50 you can download a RIP for the 1280 from Roy Harrington's web site (www.harrington.com). Combined with Stephen Billard's QTR GUI (www.sbillard.org) which costs nothing, this is a great solution to the problem of using the same inks for color and black and white that I've been using for a couple months now with my Epson 2200 printer..
--Brian Ellis, 2004-12-12 05:15:47
One of the main advantages of the Image Print RIP for black and white prints is that it eliminates metamerism. It does this by not using the yellow ink for black and white prints. You cannot achieve this result without a RIP, regardless of how you profile your printer. There are only two other ways to achieve black and white prints that do not change hue under different light sources: 1. Use a different RIP (such as Roy Harrington's RIP, Quadtone), or 2. Use a printer that only has black and white inks in it, such as the MIS quadtones.
--Howard Slavitt, 2004-10-19 06:56:15
When you feed the Epson driver a monochrome image (warm, neutral, or whatever) it uses all of the inks, including yellow, in rather large amounts. In contrast, when I make a warm profile for QuadToneRIP I only need to use the black and light black inks to get a warm tone. For sepia I would only add very small amounts of light magenta and a tiny bit of yellow to the mix. For a neutral print only a little light magenta and light cyan are added to neutralize the warm tone of the light black ink. All of the prints made with these profiles are free of metamerism because of the light ink loads - not just because of the absence or small amount of yellow (in the case of the sepia profile) used. Another advantage of QuadToneRIP is the ability to make and linearize your own profiles - can't do either with ImagePrint. If you still have doubts download QTR and try it - won't cost you a penny unless you are satisfied and then you only pay $50.
--Carl Schofield, 2004-10-19 11:47:51
I have been using it for about 9 months on both a mac and a pc and the results are astounding to say the least.
--Randy Becker, 2004-12-08 16:59:59
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