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

Started Jan 26, 2014 | Discussions thread
windsprite
windsprite Senior Member • Posts: 2,689
Re: To all who continue to accuse me of all kinds of photographic sins...

Messier Object wrote:

And one might also ask why it is that nation states, universities and mega-dollar consortia build huge telescopes with enormous imaging sensors.
Each of the two Keck telescopes is FL=17,500mm f/1.75 . . .they know that the huge 10 metre aperture captures more photons.

Peter

Yes indeedy!

Speaking of astronomy, I always get a kick out of your user name!

Julie

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