Re: [APML] More SS4000 scanning questions

[Alan Voetsch <alanv12952@yahoo.com>]

Hey Don,

--- Don Westergren <westergren@netzero.net> wrote:
> Jerry's book has a short discussion of "spatial resolution" in
> chapter 1
> where he says that 2700 dpi is adequate, but that some films can go
> to
> higher resolution, all the way to 8000 dpi.  There's no set "Best"
> resolution for scanning.

It was quite awhile ago that I went through the first parts. I'll do it
again when I can.

> computer/Photoshop.  If you want to produce a print at 8x10 inches
> and you
> use a printer with 360 dpi (or multiple) then you may want to start
> with a
> scan about 3200 dpi to avoid any interpolation of pixel information. 
> If
> your printer uses 300 dpi or multiple, then 2700 is fine for an 8x10.
>  Want
> to go for 11x14? Then a 360 printer needs 4000 dpi scans.  I really
> try to
> avoid any resizing of a picture that would require dividing or
> multiplying
> pixels by anything other than an integer in the scanner, computer,
> and printer.

Understood. At this point, I do not plan to print anything. Only web
uploads. In the future I will probably try to print somethiong out
without screwing it up too bad. I still have the place that does my
developing do all my printing and enlarging.

Thanks,
Alan



=====
SCT Astrophotography: http://www.pbase.com/avoetsch/astrophotography
FS-102 G-11/Gemini: http://www.pbase.com/avoetsch12952/tak_fs102
& http://www.pbase.com/avoetsch12952/fs102


		
__________________________________ 
Do you Yahoo!? 
Check out the new Yahoo! Front Page. 
www.yahoo.com 
 

_______________________________________________
Astro-Photo mailing list
Astro-Photo@seds.org
http://seds.org/mailman/listinfo/astro-photo