Re: [APML] Mr.Zangs comment

[Christopher Go <christone@pacific.net.ph>]

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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Christopher and Vicky Go
Christone Industries
Manufacturer and Exporter of Quality Fossil Stone and Wrought Iron Furniture
Cebu, Philippines
http://www.christone.net
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