Re: [APML] Coma corrector needed ?

["Bobby Middleton" <bobm@koyote.com>]

William, I designed a system (8" f/4) that used both the Lumicon corrector
and a corrector made by Vixen for their 8"f/4 R200ss. Look in the archives
under 8" f/4 newt and Vixen corrector. I'll get back to you as I get more
time.
Bobby Middleton

From: "William R. Mattil" <wrmattil@ix.netcom.com>


> Gentlemen,
>
> Having ordered a new Optical Tube Assembly to augment my existing 10"
> f/6 Newtonian I have decided upon either a 12.5" or 10" f/4. Not ever
> having owned a "faster" scope I am curious if I will need a coma
> corrector for this. This will be specifically for 35mm astrophotography.
> Also any suggestions as to how I can achieve maximum illumination (ie:
> minimal vignetting) would be appreciated. The only coma corrector that I
> am aware of is the Lumicon. Are there others ? Any recomendations ?
>
> As always any advice would be greatfully appreciated. FWIW the OTA will
> be a Parks
>
> Regards
>
> Bill
> --
> William R. Mattil | Fred Astaire wasn't so great.
> wrmattil@ix.netcom.com | Ginger had to do it all backwards
> (972) 399-4106 | and... in high heels.
>
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