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Focus points ?
okay, im a fella that likes to Know before i go ahead,
I Know for a fact that a cannon 350D comes to focus in a 8" SW Newt with a focal length of 1200mm, and a mirror width 203mm giving a F# of ~5.9
will the same camera come to focus in a 10" SW Newt with a focal length of 1200mm and a mirror width of 254mm giving a f# of ~4.7
In my mind the f number should only affect the FOV and how fast you can capture things not the focal point as the focal point is 1200mm. I might be wrong though but i thought ide post the question and see what the response is.
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