Quote:
Originally Posted by RickS
Well, aperture is half the story, Peter. The other half is image scale, combining focal length and pixel size. A small aperture scope can be faster than a huge aperture provided you're collecting the photons in big enough buckets (and are happy with much less resolution with a larger FOV as the upside.)
I do agree that the f-ratio of a scope is meaningless by itself...
Cheers,
Rick.
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I hear what you are saying Rick...my point however is a 10" can only gather 10" worth of flux.
Optimal sampling will help better detect what's hitting the focal plane...it just won't give you more photons down the pipe
