Mark to be more specific about my comments -
Obviously, 2048x3072 is the best resolution, since it's the highest.
What you're talking about is the size of the opened image in pixels - not
the resolution. You need to go into the resolution box to control the output
resolution. If you're not printing I don't see a reason to open the image in
anything other than 72 ppi. For printing I normally use 300ppi.
But what about 8 vs 16 bits/channel? Does the PhotoCD format really
include more than 8 bits per channel
My photo CD images from as far back as 98 do. I now open pcd files in 16
bits.
How about the best color space? stuff like that....
You only have two choices either RGB or LAB. Don't know why you'd open in
Lab.
....it's easy to see why Kodak has failed as a company that drives imaging.
You have to remember this was one of the only affordable ways to get a
digital image way back then.
In the mid/late 90's info was not hard to get about the photo CD, Kodak
published several small booklets.
Not sure why the concept failed, but until the *ist D it was the only way I
could get digitized images @ a reasonable cost - I have around a thousand
mages on Kodak Photo CDS.
Kenneth Waller
http://www.tinyurl.com/272u2f
----- Original Message -----
From: "Mark Erickson" <[email protected]>
To: "pdml" <[email protected]>
Sent: Tuesday, February 03, 2009 2:46 PM
Subject: OT: converting Kodak PhotoCD format to, e.g., TIFF?
Ken,
Thanks for the info. I'm using CS2 and see the same dialog box. I guess
my questions essentially boil down to the understanding the best settings
to use in the CS2 dialog box. Obviously, 2048x3072 is the best
resolution, since it's the highest. But what about 8 vs 16 bits/channel?
Does the PhotoCD format really include more than 8 bits per channel, or am
I just wasting disk space? How about the best color space? stuff like
that....
After poking around and only finding a little bit of information on the
web about PhotoCD, it's easy to see why Kodak has failed as a company that
drives imaging. With PhotoCD, their attitude seemed to be, "Let us take
care of it; don't ask how it works, just pay us; trust us, it'll be
good." The imaging world treated their approach as damage and routed
around it.
--Mark
Ken Waller wrote:
Mark , I'm using CS2 and can open Photo CD images (slides) over 11 years
old. The open PhotoCD dialog box lets me choose - 'Pixel size' from 64X96
up to 2048X3072, Film profiles (I use 4050 E-6 V3.4), Resolutions from 72
PPI up to 550 PPI, RGB in 8 or 16 bits/channel & LAB in 8 or 16
bits/channel.
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