[APML] Q/Spectra Sure Sharp

[AikeM.Voelker-Jamin@t-online.de (AikeM.Voelker)]

Hi List,

I've purchased a used Spectra Sure Sharp focuser yesterday and I am trying to 
get some more information or a manual about it. 
As far as I know Spectra doesn't exsist any longer so I guess I can't get any 
clues from them! 

I plan to use the Sure Sharp in connection with my GEG and a Nikon F3 HP Camera, 
the only thing I know about the focuser is that it's the "Nikon" version.
The focuser screen seems to take place at the same distance to the scope where 
later during exposure the film is located. How can I judge that distance of the 
focusers screen and the distance of the camera (film) is the same?

Thanks for all hints and Clear Skies,
Aike
http://www.astrophotography.de 


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