Re: A Schiefspiegler as first telescope (was Re: ATM 3-Vane or 4-Vane Spiders)

["Charvell" <charvell@sofnet.com>]

So a long focal lengh mirror is actually harder to do than a medium focal
lengh? Am I getting this correctly? Long=hard, medium=easier, short=very
hard. So where is the very easiest place to start and would a 10" be OK for
a first time mirror or should I try a smaller? I want the easiest option to
start with. I don't have anyone I can get to come over and bail me out  :)

----- Original Message -----
From: "mjc5" <mjc5@psu.edu>
To: <atm@shore.net>
Sent: Friday, October 05, 2001 6:07 PM
Subject: Re: A Schiefspiegler as first telescope (was Re: ATM 3-Vane or
4-Vane Spiders)


>
> I suggest the 8 inch f6 or f8. I've made an F10.2 mirror, and it isn't
> as easy as it may seem at first. A sphere at that length is a shallow
> creature indeed.
>
> Then if you want to make your Schief, you can apply what you learned
> from your first mirror.
>
> - Mike -