Bobby,
I have no technique for focusing! J Really,
since this was only my 3rd attempt at prime focus I was
concentrating on guiding and only gave focusing a cursory look. Now I need to
do something to get it right since the guiding seems to work. My OAG is a cheap
Meade, I really need a better one. I’d like to get a GEG, but that will
have to wait, I’m well over my toy budget. I know the Meade works, I proved it last
night, but finding a descent guide star was troublesome. Since I have 2 Canon
camera’s, do you think I could put one on the OAG with no film and use a
true knife edge(like a razor blade) to focus and then put the body on that has
the film? Comments?
Scott
-----Original Message-----
From: owner-astro-photo@seds.org
[mailto:owner-astro-photo@seds.org] On Behalf Of Bobby
Middleton
Sent: Thursday, March 07, 2002 5:48 PM
To: astro-photo@seds.org
Subject: Re: [APML] M42
Hi Scott. Your guiding looks good
and the mask is well done to preserve the core. I agree with you on focus;
you're probably a little soft. What's your technique for focus? The hypered PPF
color looks good. Was the grain OK? Are you using an OAG or guidescope?
----- Original Message -----
Sent: Thursday, March 07, 2002 3:10 PM
This is my latest attempt for prime
focus shots. My polar alignment seemed
very good and the ST-4 tracked the best I’ve personally seen, A3’s
and A4’s for the 28 minute shot and later A2’s and A3’s on a
20 minute shot.
I believe I was slightly out of
focus and I also had trouble trying to eliminate what appears to be vignetting
in the posted image. This was also my first attempt combing images, Photoshop
was the only post processing used.
Comments and suggestions please!
http://www.creatorsview.com/Pages/testimage.html
Thanks
Scott