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Re: [APML] Darkroom services



Rob and Tony -
While I'm sure the prints from Rob's images are great, I am confused about this whole "size thing"....<g>
If you have a image from the ST-10 which is 2184x1472 and you print that file to make a 16"x24", you are only getting around 91ppi.  How can a large print @ 91ppi be any good?  My understanding is that for high quality ink jet printing, somewhere around 225ppi is minimum(LJ's are 305ppi and Fujix is 267ppi).  I'm having a hard time believing that the file from a ST-10 can make a high quality 16"x24" or 20"x30".  Are the files resed up in GF?
Please explain because I must be missing something.
 
Chris
    
 
==================
Chris Cook
Astronomical Photography
www.abmedia.com/astro
 
 
-----Original Message-----
From: Robert Gendler <robgendler@worldnet.att.net>
To: astro-photo@seds.org <astro-photo@seds.org>
Date: Thursday, January 17, 2002 2:55 PM
Subject: Re: [APML] Darkroom services

I can attest to the high quality of printing by Tony's lab.
Tony has made many prints for me up to 40 x 30". The prints
are on high quality kodak glossy paper. The color, saturation and
smoothness are superb. You can even make use of Tony's
superb processing skills and experience if you desire his processing
input on your images.
 
Another issue I'd like to comment on is the printability of CCD images.
This may be of interest to those considering delving into CCD but
concerned about the printability of CCD image compared to film.
CCD files are naturally smaller than routine scanned film files.
However due to the smoothness of high quality well exposed CCD images
large high quality prints are possible. My ST10 images generate files
that are about 8MB. Film folks would consider this a small file but many
of my ST10 images have been printed at 16 x 24" and are very smooth
and sharp. Some of my images taken with my IMG1024 camera generate
even smaller files (3MB) but have been printed by Tony at 20 x 20" and
have held up remarkably. Of course, CCD mosaics approach typical scanned
film file sizes. Tony has printed my M31 mosaic (39MB file) at 40 x 30".
I was very happy with the result.
----- Original Message -----
Sent: Thursday, January 17, 2002 3:24 PM
Subject: Re: [APML] Darkroom services

Roland,
 
    We specialize in printing images from CCD... the typical CCD image enlarges very well if there is little noise. Your M42 shot would do well... easily going to the 30 X 40 size... maybe even 40 X 50. And with Grain Surgery significant amounts of noise can be deleted from the image (if there is noise).
 
       Tony