A reminder for some memebers as to what the F stop is all about.

Started Jan 26, 2014 | Discussions thread
bobn2
bobn2 Forum Pro • Posts: 62,183
Re: simply embarrassing
4

Kurt_K wrote:

Lets see a show of hands. How many believe a larger telescope doesn't let in more light?

He made it quite clear in his original post that the measurements are relative, not absolute.

How many believe a larger telescope doesn't let in more light relative to a smaller one?

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Bob

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