Re: [APML] Mr.Zangs comment

["Walter Willis" <wwillis1@qwest.net>]

He did state an 8" LX200.  Now his whole thing is off the air.

Walter

----- Original Message ----- 
From: "Christopher Go" <christone@pacific.net.ph>
To: "Discussion of Film Astrophotography" <astro-photo@seds.org>
Sent: Monday, May 19, 2003 8:35 PM
Subject: Re: [APML] Mr.Zangs comment


: The star image on his picture is too sharp and flat for a SCT.  In fact,
it
: is an image you would get with a short focus refractor!   He never made a
: comment on what telescope he used.  Beside a 5.5 hour exposure at ASA 6400
: would have the film grainy as hell and burned out!!
:
: Chris
:
: At 08:14 PM 5/19/03 -0700, you wrote:
: >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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: > > :
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