Re: [Leica] Leica lens turned into a telescope - can it be done?

["clive sanbrook" <clive.sanbrook@virgin.net>]

I used to have a Meade ETX astronomical telescope ((1000mm f19 (roughly) in
photographic terms)) and even with an eyepiece which gave around 100 times
magnification could only just see the rings on Saturn - And this was
difficult to keep centred in the viewing area because of the earths
rotation - IMO you would be stuggling to achieve this level of view with
your propsed combination - I found that I was always disappointed in the
amount and size of the detail that I could see. - my guess would be that
your combo would be ok as a terrestrial telescope - or for the moon - but
that would be about it.

If you can find one locally  - most amateur astronomical societies welcome
new members - and often have open evenings when you get a chance to look
through various 'scopes.

This is my local society - but there is a links page
http://www.astro.cf.ac.uk/sas/sasmain.html


http://www.astro.cf.ac.uk/sas/halesand.jpg

This is an image of comet hale bopp which I took a 200 mm F4 lens - Saturn
is a long, long way further out - hope this puts the size you might see in
perspective.

P.s.I'm not saying which make of lens :-()

Regards

  ----- Original Message -----
From: "Vick Ko" <vick.ko@sympatico.ca>
To: <leica-users@mejac.palo-alto.ca.us>
Sent: 05 November 2000 15:48
Subject: Re: [Leica] Leica lens turned into a telescope - can it be done?


> I'd like to see the rings of saturn.  How "big" a telescope
> would I need?  Telescopes are more normally quoted
> as lens or mirror diameter, and sometimes f-stop.
>
> Or - how long a Leitz lens, with this objective, would I need?
>
>
> Vick
>
> Roy Zartarian wrote:
>
> > There is the 14234, Telescope Ocular R which New York Camera &
> > Video (www.nycv.com) is offering for $300.  I wonder whether you'd
> > have enough reach for astro viewing this type of combination.
> >
> > Roy
> >
> > On 5 Nov 2000, at 8:54, Vick Ko wrote:
> >
> > > Here's a question for the technical types.
> > >
> > > I'd like to merge astronomy with my Leica affliction.
> > >
> > > Can I buy an adapter and eyepiece to turn a long
> > > Leica zoom or telephoto into a telescope?
> > >
> > > If so, what telephoto should I buy?  What if it
> > > were a zoom?
> > >
> > > Who sells the adapter and eyepieces?
> > >
> > > Thanks
> > > Vick
> > >
>