RE: [APML] 1st BRC mosaic: heart & baby

["Jon Kolb" <jkolb@datawest.net>]

Hi Bobby,

> I also had some film flatness issues that can be seen at 
> higher resolution, and there's still the collimation to get 
> right. I have a collimating telescope on the way for the BRC 
> now. Anyone who has experience in collimation with one of 
> these please e-mail me. (Steve, Loke--you guys adjust yours 
> any yet?) The mosaic is 2 frames; each being a 2 stack of 
> E200 (60 min) and a single 50 min TP exposure. Comments and 
> thoughts welcome. Bobby Middleton

Great shot, Bobby.  Lots of detail in the nebulae.  I recently picked up
the Hutech vacuum back for the 67, and it seems to work just great.  No
more smeared stars on some shots.  It's also a heckuva lot less
expensive than a full-blown vacuum camera like the Mitsuboshi.  Cutting
out the paper backing on a 120 roll in a changing bag is not that hard,
either.  You might think about this approach to cure the film flatness
problem.

Sincerely,
Jon Kolb
Adventures in Astrophotography
http://home.datawest.net/jkolb/
jkolb@datawest.net




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