RE: [APML] To push or not to push

["Chris Schur" <cschur@cybertrails.com>]

Scott, interesting demo, to me, it looks like the zoomed in images at the
bottom shows the +1 stop grainier than the +3 stops.  I have settled on a +1
stop for the E200, you get a significant speed increase, but the grain is
pretty much unchanged.  It also helps to really expose the slide films, to
get off the jet black background plateau.  Does this make any sense?

Chris Schur

Astrophotography: http://www.psiaz.com/schur/astro/index.html


-----Original Message-----
From: owner-astro-photo@seds.org [mailto:owner-astro-photo@seds.org]On
Behalf Of Herm
Sent: Thursday, March 14, 2002 6:01 PM
To: astro-photo@seds.org
Subject: Re: [APML] To push or not to push


I have some close ups in my website at:
http://home.att.net/~hermperez/e200_push_processing_comparison.htm

this compares a +1 vs a +3 push (ignore the focus problem).. the conclusion
is
that there is a slight increase in grain and a true increase in recording
power.
Note that E200 pushed +3 to ASA1000 still has less grain than the usual
ASA400
astro films that we use. I would not worry too much about grain with E200,
pushed or unpushed..

"Scott Hammonds" <capella@creatorsview.com>  wrote:

>After searching the archives for a while and re-reading Covingtons
>section on films, I'm trying to decide whether or not to push E200.
>Any thoughts? Comparison shots?
>Thanks,
>
>Scott Hammonds


Herm
Astropics http://home.att.net/~hermperez

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