Re: [APML] What's Wrong with these Pictures?

["Chris & Jennifer Cook" <ccjd@ix.netcom.com>]

Kevin -

I'm thinking you got some of the new RG200?  I shot of test image with
un-hypered RG200 that was purchased about a year and a half ago and got tons
of red in NGC7000.  See:
http://www.abmedia.com/astro/current/ngc7000-tv102.html

Plus, 45min at f/4 is much longer than my 45min @ f/6.9

Chris


==================
Chris Cook
Astronomical Photography
www.abmedia.com/astro


-----Original Message-----
From: Kevin Wigell <kwemail@twcny.rr.com>
To: APML Discussion List <astro-photo@seds.org>
Date: Sunday, August 11, 2002 8:48 AM
Subject: [APML] What's Wrong with these Pictures?


>The short answer is "a lot". Some of the problems, I know what went wrong
>and how to fix. What I can't figure out is why I failed to capture any
reds.
>Take a look here: http://home.twcny.rr.com/kevinwigell/Bad_Images.htm
(These
>are raw scans.)
>
>The film was Kodak RG200, which I have used with success before. In fact,
>here is another image of the Deneb region I took with the exact same
>equipment and film just last month, from the same location, which turned
out
>great: http://home.twcny.rr.com/kevinwigell/Deneb_Region.htm
>
>I have some theories: Film got too warm (it was in a hot tent for a couple
>of days), bad batch of film, bad processing at the 1-hour photo place (bad
>chemicals?). Also, both these photos were taken through intermittent
passing
>thin clouds and haze. But every image on this roll of film showed
>practically no reds. Almost looks like Fuji 4th layer film.
>
>Any ideas would be greatly appreciated.
>
>Kevin Wigell
>
>
>--  APML Archives at <http://astro.umsystem.edu/apml/>  ---
>             Unsubscribe at <majordomo@seds.org>
>


--  APML Archives at <http://astro.umsystem.edu/apml/>  ---
             Unsubscribe at <majordomo@seds.org>