Re: [APML] Coma corrector needed ?

[Sean Walker <vze2c3z8@mail.verizon.net>]

How about the TeleVue Parrcorr:
http://www201.pair.com/resource/astro.html/regular/products/tele-vue-optics/
paracorr.htm

Sean Walker

> From: "Bobby Middleton" <bobm@koyote.com>
> Reply-To: astro-photo@seds.org
> Date: Fri, 15 Feb 2002 12:11:38 -0600
> To: <astro-photo@seds.org>
> Subject: Re: [APML] Coma corrector needed ?
> 
> 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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> 
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