Re: [ATM] Maksutov Corrector Cell Design

[Bill Marriott <bmarriott@pacbell.net>]

Hello:

I believe the importance in aligning the corrector in a Maksutov, has to 
do with the corrector sitting square to the optical axis of the 
telescope, in that any tilting from this alignment  will start to 
introduce a prismatic affect, ie color.  Same for wedge between the two 
surfaces, I believe.  When fabricating the OTA for my 6" Maknewt, I had 
the ends of the tube cut square to its rotating lengthwise axis (big 
lathe) and the corrector cell was also cut square, no adjustments (there 
is in the mirror cell), and a very thin layer of automotive gasket paper 
material was used to 'cushion' the aluminum-glass interface.  When 
autocollimating the scope, I put the test flat right up against the 
front of the cell, and it was very easy to find the image in the ronchi 
tester.

Bill Marriott

Richard F.L.R. Snashall wrote:

>
>
> Gregg Swanson wrote:
>
>> What is CoC?
>
>
> Center of Curvature (in this case)
>
>
>

_______________________________________________
ATM mailing list http://www.atmlist.net/