Re: [APML] To push or not to push

["Warren Keller" <warhen@mindspring.com>]

Do it 2 stops!
Warren A. Keller
Billions and Billions- Astrophotography
http://billionsandbillions.homestead.com
----- Original Message ----- 
From: "Scott Hammonds" <capella@creatorsview.com>
To: <astro-photo@seds.org>
Sent: Monday, March 18, 2002 8:05 AM
Subject: RE: [APML] To push or not to push


> Thanks to all who replied to my E200 processing question. I took some
> shots over this past weekend and plan to push 1 stop. I'll let you know
> how they turn out. 
> 
> Scott Hammonds
> 
> 
> -----Original Message-----
> From: owner-astro-photo@seds.org [mailto:owner-astro-photo@seds.org] On
> Behalf Of Sean Walker
> Sent: Thursday, March 14, 2002 10:22 PM
> To: astro-photo@seds.org
> Subject: Re: [APML] To push or not to push
> 
> When I was shooting E-200, I pushed it 2 stops- I think it worked out
> fine
> there. you can see my results in my Vignetting article in S&T.
> 
> Sean Walker
> 
> Chris Schur wrote:
> 
> > 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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