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Re: The Advantages of QTR Are?


Diane Fields
 

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Bernie, that's about it.? I don't think you can assign a grayscale profile until you 'convert' to grayscale, but I could be wrong.? Nonetheless, you do need to 'convert' to first the LAB--because you will probably want to save this as your master tiff.? Then--convert this file to either gray-matte or gray-photo and save this tiff and use it to print from.?
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I haven't printed on the Ilford paper but after doing step wedges on my Epson Premium Semigloss and laying out all my 11 papers, I found that it was much creamier than I had really ever thought.? Consequently it affects the 'cool' curve quite a bit, but when you print from a 100% warm to a 100% cool, you can see the differences as you progress from one to the other and its marked.? My most neutral prints will be on Hahnemuhle PHotorag, Velvet, Innova Photo Fibaprint and Epson Enhanced Matte--all of which are matte papers.
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The RIP won't affect bronzing--because that's a paper/ink thing.? I haven't sprayed any since I mostly print b/w on matte paper, but not always.? On the other list they are all spraying their gloss and semi gloss prints and are using 'glop' (gloss optimizer) in a cart with their 3rd party inks.? I'll have to try the Lyson spray though--good to hear when someone likes a particular brand.
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If you try the softproofing in gray-LAB I think you would find it helpful also.? You can tweak that final contrast/tonality if needed.? Have you found the gray file on Roy's page?
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Diane
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----- Original Message -----
Sent: Sunday, April 03, 2005 3:00 PM
Subject: RE: [QuadtoneRIP] Re: The Advantages of QTR Are?

Hi Steve and Diane

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I’ve been following this carefully, because I’ve been using QTR for my black and whites with reasonable success for the last couple of weeks (with Windows) and didn’t know about the grey icc files. I just use my usual Photoshop b&w workflow and print with QTR (although I make the prints much less warm than I used to – as Steve says they do print rather warm).

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I’m going to give the ICC files a try, but still a bit confused. Leaving the proofing process to one side for the moment, am I right in saying that these are the steps:-

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  1. Process the photo as normal (without b&w conversion)
  2. Mode->Convert to grey-lab (the Mode->assign operation doesn’t appear to recognise the ICC files)
  3. Mode->Convert to grey-matt or grey-photo as appropriate
  4. Save as Tiff
  5. Print in QTR

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By the way, I use Ilford Smooth Pearl paper and like others have been alarmed by the bronzing affect (printing with QTR doesn’t appear to affect the amount of bronzing). What I’ve been doing is this. If the print was to go under glass for a customer, then I used the QTR printed photo, otherwise I would send the photo off to the lab to be printed. However, I’ve now discovered Lyson Printguard – this spray drastically reduces the bronzing effect and also completely eliminates the gloss differential (which was very noticeable on my prints as I shoot mostly against a white background). So now I print all b&w with QTR.

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Thanks for your help

Bernie

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