Re: [APML] Mr.Zangs comment

["Don Spencer" <ecdon@cox.net>]

Mr. Zang.....hmmm. Has anyone  in our group shot M31 through an SCT? I've
looked at it through my 12" and a 31 Nagler and it still didn't fit into the
FOV. Can anyone here caculate the exact FOV on 35mm and medium format films,
using an 8" LX200 at f/10 and F/6.3? I would really love to respond to him,
but I want to get my "sceintific" facts down first. I already proved it out
visually.
Don Spencer
----- Original Message -----
From: "Walter Willis" <wwillis1@qwest.net>
To: "Discussion of Film Astrophotography" <astro-photo@seds.org>
Sent: Monday, May 19, 2003 7:42 PM
Subject: Re: [APML] Mr.Zangs comment


> Interesting.  A bun warmer keeping the camera warm in -20 degree weather.
> What about the heat rising from an object that is 120 hotter than the air
> around it.  Should have wrecked the seeing.  What about the temp effect on
> the film?
>
> Just my thoughts.
>
> Walter
>
> ----- Original Message -----
> From: "Brian Larmay" <astrobri@ameritech.net>
> To: <astro-photo@seds.org>
> Sent: Monday, May 19, 2003 7:15 PM
> Subject: [APML] Mr.Zangs comment
>
>
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