Re: [APML] Orion Short Tube 80

["Taras R. Hnatyshyn" <tarashnat@earthlink.net>]

Frank,

I have a Short Tube, but I haven't tried it for AP yet. I believe it 
needs an adapter to reach focus with a camera. I'll have to check my 
manual, when I find where I put it. The Short Tube is up in the 
Catskills, so I can't check on it until the weekend. The only imaging I 
have done with it was a test mosaic of the moon with a SAC-IV camera. I 
was not happy with the results, as it just came into focus (I think) at 
the extreme range of focus travel.

On Monday, October 20, 2003, at 01:40 PM, Frank Barrett wrote:

> Does anyone on the list use the Orion Short Tube 80 for AP?  Any 
> problems with vignetting on a 35mm frame?  As an achromat would I need 
> a minus violet filter for film?
>  
> TIA,  Frank
> http://celestialwonders.com
>  
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>
--
                         <end of message>
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* Taras R. Hnatyshyn                     tarashnat@earthlink.net *
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*  73°59'18.4"W 40°43'37.2"N    or    74°25'24.4"W 41°40'42.0"N  *
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