Re: [ATM] New 16" ultralight telescope

["Jim" <jim@idexer.com>]

----- Original Message ----- 
From: "Ken Hunter" <atm_ken_hunter@yahoo.com>
To: "Jim" <jim@idexer.com>; <atm@atmlist.net>
Sent: Friday, April 21, 2006 2:06 PM
Subject: Re: [ATM] New 16" ultralight telescope


> Jim...
>
>  Have you done any testing of the complete optical system with the 
> Starfire glass in place? I'm interested
> in seeing if there's much effect on the system figure. A knife edge 
> or Ronchi at the eyepiece position
> will be the test to determine this. I've priced Starfire locally and 
> though it's advertised as good for our
> purposes, I don't want to spend what they want ($60.00) for a 2X2 
> foot piece to do the test.

I did absolutely no testing, I didn't even figure the mirror. Was just 
something I threw together from odds and ends after horse trading for 
the mirror from a guy 5 miles from me. I just thought at the time it be 
cool to enclose the tube and do away with the spider. I understand it 
is popular for making fish tanks these days.
That sounds expensive the $60..in Phoenix prices isn't bad at a glass 
wholeseller. I *think* I have seen Lowes advertising the glass so might 
check there for prices. Anyway, the images wasn't bad at all through it 
for the nights I used it and jupiter's bands was clear. 

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