[APML] New image: m101, first deep sky techpan

["Jeff Ball" <jeffball@netacs.net>]

Hey APML,
On a lark, I decided to try some one year old Techpan I had in the fridge on
M101 during a nearly 5 day old Moon from my backyard ~ 5 magnitude skies.
Not real smart.  Here are the results.  The Techpan had some unevenness to
the fogging.  I went way past the sky fog limit, so contrast was severely
compromised.  I also got the highest resolution I have ever had in an image.
I believe I have had some flexure on previous images with the Losmandy DR108
rings and have decided to eliminate one more set of screws to tighten by
going with the AP rings and guidescope.  I am definitely shooting more
hypered Techpan.

AP130EDT with Nikon F3 and field flattener
First time focus test on deep sky with my adapted Peak 8x and 15x lupes
hypered TechPan developed in D19 for 10 minutes
2x 60 minutes combined in Registar

http://www.astro-photography.com/m101_tp.htm

Jeff Ball
Astrophotography
www.astro-photography.com
email
jeffball@astro-photography.com


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