[APML] Rho & M8M20

["Steve Lindsey" <stevelindsey@earthlink.net>]

Here's a couple I got last weekend at RTMC.  There was a lot of thin clouds
Fri night when I took these and it was my first try with my friend's 300mm
f4.5.  I think the Rho shot was overexposed at 45 min f4.5 and it vignetted
quite a bit wide open.  It did give me a great opportunity to learn one of
Jerry's AV techniques however.  Interesting that the M8M20 shot showed no or
very faint noticable vignetting at 15 min though.  Do I need to shot at f5.6
for the faint stuff or just back off on exposure time?

http://home.earthlink.net/%7estevelindsey/Rho.html
http://home.earthlink.net/%7estevelindsey/M8M20.html

There was also some arced star trailing at the bottom of the Rho shot but
the worst was cropped out.  Let me know any ideas on what you folks think
caused this.

Comment always appreciated.

Steve


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