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Medium format on a 8"

Started by mulberrybay, 09/01/2003 07:23AM
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Posted 09/01/2003 07:23AM Opening Post
Ericson Tham
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Join Date: Aug 2003

Location: Singapore, SG

Posts: 7

Hi, has anybody tried doing medium format (6x7) astrophotography on a nexstar 8? In fact, can a 8" accomodate medium format astrophotography?

Thanks
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Posted 09/04/2003 11:32PM #1
Robert Watters
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Join Date: Jun 2001

Location: Roscoe IL, US

Posts: 1474

An 8" SCT @ F10 will fully illuminate just a little more than 35mm negative so this combo will produce a photo that is highly vignetted. That is, if you can even find the necessary adapters and such. Even in the larger 10-14" SCT's with the larger visual back you won't get 100% coverage.


Robert W.
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There's no substitute for fine glass!
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