Re: [APML] A few more barn door shots

["John C. Mirtle" <spampit@shaw.ca>]

Eric,
    It looks like you are good to go - stars are nice and round, no obvious
errors or problems. You really want to move away from f1.8 though. I have
the same Zuiko 50mm f1.8 and I use it often, stopped down to f2.8. You are
going to like the lens at this setting - vignetting is minimal and the stars
are way sharper. The drawback is that you must double your exposure times.
If you can do this, I think that you will really like the improvement in
image quality. It looks like you are starting to get the hang of this!

John Mirtle
Calgary, Ab. Canada

----- Original Message -----
From: "Eric Beard" <ericzbeard@yahoo.com>
To: <astro-photo@seds.org>; <novac@his.com>
Sent: Sunday, June 29, 2003 11:59 AM
Subject: [APML] A few more barn door shots


I finally got the tracking figured out, so almost all
my shots feature round stars now, but the dew killed
me on this roll.  Also, I found that shooting at f/1.8
causes some annoying vignetting.  I used Kodak Max 400
Versatility this time.  Here are links to the shots
that came out Ok:

http://members.aol.com/NGC5195/20030625/sagittarius.html
http://members.aol.com/NGC5195/20030625/scorpius.html
http://members.aol.com/NGC5195/20030625/mars.html
http://members.aol.com/NGC5195/20030625/lyr_herc.html
http://members.aol.com/NGC5195/20030625/beta_oph.html

EZB
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