RE: [APML] OT: Ash Lurie 200 Astrograph@cox.net

["Loke Tan" <tan@cox.net>]

Bill,

 I know what you mean. Nevertheless, a Schmidt camera is not a very flexible
general purpose telescope. So unless the Schmidt offered something special,
a refractor is a much more useful instrument. At least you can look thru
one. So for all the pain of using a Schmidt, it better offer something
additional to a refractor for imaging. That something, IMHO is fast optics
with the ability to get very high resolution results with Tech Pan and
widefields at the same time. This combination is only available in a Schmidt
camera or a variant of this design.

Loke


> -----Original Message-----
> From: astro-photo-bounces@seds.org
> [mailto:astro-photo-bounces@seds.org]On Behalf Of William R. Mattil
> Sent: Friday, June 06, 2003 3:20 PM
> To: Discussion of Film Astrophotography
> Subject: Re: [APML] OT: Ash Lurie 200 Astrograph@cox.net
>
>
> lkt wrote:
>
> >  No, it does not preclude using color film. If you used color
> film, the rather short FL of this camera at 500mm will be limited
> by the resolution of the film. So your images will be not too
> different from say that of an AP Traveller at 600mm FL with 6x7
> color film. There are many people who have done a lot of good
> work with APO refractors on medium format film. I am presuming
> you want to do better than this. So if you use color film, I say
> "why bother" because you're just reproducing similar images to
> many which have been done for the last 15 years.
>
> Loke,
>
> That makes sense then, we are in completely different places with
> regards to Astrophotography. I am doing it for my own personal
> satisfaction and to try and overcome my own shortcomings <laughs> I have
> no delusions about ever producing an image that anyone here would find
> interesting <g> But I will say that the Lurie product with color film
> might be a bit better than the AP Traveller <g> No stupid waiting list,
> no field flattener needed, no knife edge etc etc. <vbg>
>
> Best Regards
>
> Bill
>
> --
> William R. Mattil	| Fred Astaire wasn't so great.
> wrmattil@ix.netcom.com	| Ginger had to do it all backwards
> (972) 399-4106		| and... in high heels.
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