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focal reducer

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17 years 2 months ago #52740 by dave_lillis
Replied by dave_lillis on topic Re: focal reducer

Thanks Trevor
So heres the big question how can i get objects that are normally outsizing my Camera to fit in the ccd? How about eyepiece projection?

Thanks


Eyepiece projection usually yields higher magnification thus narrower field of views compared to prime focus photography.
Also, when if you go down this route, you'll need specialized wide field eyepieces such as
www.scopetronix.com/trings.htm
otherwise you'll end up with a highly curved and vignetted field of view.

Also, like the lads above said, a F6.3 focal reducer on a F5.8 scope is a bad idea.

Dave L. on facebook , See my images in flickr
Chairman. Shannonside Astronomy Club (Limerick)

Carrying around my 20" obsession is going to kill me,
but what a way to go. :)
+ 12"LX200, MK67, Meade2045, 4"refractor

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