Re: Faux pyro for Epson 1280

From: Robert Tilden ^lt;rntilden@lotus.phys.northwestern.edu>
Date: 04/26/04-12:28:43 PM Z
Message-id: <6.0.0.22.2.20040426132600.04992a80@localhost>

Hi,

You can't switch a 16 bit file from grayscale to indexed in Photoshop CS.
 From Kieth's paper:
    * Better yet, if you can stay in 16-bit grayscale for all of your
editing, apply the curve before switching to 8-bit mode. Photoshop CS
allows the use of 16-bit files for most functions, but not for indexed
color mode.
-B

At 11:20 AM 4/26/2004, you wrote:
>Don,
>
>Thanks for posting the link to Keith Schreiber's site.
>
>I have a question and wonder if Kerik or anyone else who makes negatives
>this way might address. Most everyone indicates that there are
>considerably benefits from starting with a 16-bit file and keeping it in
>16-bit all the way through printing. But Keith's method appears to require
>conversion of the 16-bit file to 8-bit for color indexing. Is there
>something unique about color indexing that reduces or eliminates the
>disadvantages that normally ensue from conversion of files from 16-bit to
>8-bit?
>
>
>
>
>>Since last week's e-mails covering Keith Schreiber's colorization method for
>>ink jet negatives I have discovered that Keith has now updated his web site
>>with an illustrated explanation of his inkjet negative workflow.
>>
>>Visit Keith's website and get the details.
>>
>>http://jkschreiber.com/
>>
>>Don Bryant
>
>Bob Tilden rntilden@lotus.phys.nwu.edu
>High Energy Physics Group
>Northwestern University
Received on Mon Apr 26 14:16:57 2004

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