Re: Where to get mount components.

Bob Luffel (bobl@hpgrla.gr.hp.com)
Fri, 21 Apr 95 16:17:20 MDT

>
>
> I am thinking about a fork mount for my 8 Inch, 57 Inch focal length
> telescope, and I am looking in Sky and Telescope for manufacturers of
> mount components.
>
> Light Speed Telescopes has a terrific looking 12.5 Inch scope
> and fork mount, but he says that it's designed as a system,
> and he didn't think I'd have much luck getting just the mount.
> For example, he said that his 14 Inch empty tube only weighs 9 pounds.

His mounts are really nice! However, you need to weight the back end of the tube down a bit and keep the upper end as light as possible since the ground clearance is so low.

> Also Optic-Craft Machining looks like they have some nice parts
> and I'm getting a catalog from them.
>
> Does anyone have recommendations good or bad for mount manufacturers?
>
> -Alan Kilian
>

There just aren't a whole lot of choices these days when it comes to decent equatorial mounts (perhaps a victim of the Dob 'revolution'). The requirements are most stringent if you plan to do any long exposure astrophotography. You still want a solid easy to use and setup mount for visual use, though.

Two manufacturers that offer mounts in the range you need are Losmandy and AstroPhysics (and some expensive Takahashi mounts). A Losmandy (celestron) G-11 would probably work, though you are probably at about the limit of its capabilities - if you ever went to a larger scope, it couldn't do it. That is why I like the GM200 (but it is a $4000 dollar mount...). The AstroPhysics 800 would do the job also, but won't go much past your 8 incher either (and it is more expensive than a G11).

You might find an old schaefer mount (the new ones are poorer quality and mucho expensive for what they are) for sale used. Probably a used G11 or GM100 (predecessor to the G-11 and probably a bit sturdier) would be the best value. Sometimes, some other less familiar good mounts show up used in the Starry Messenger.

Bob