The C-11 is an f/10 scope. With the reducer/corrector it can be stepped up to f/6.3.
1) How can (or can it) the f/ratio be stepped down (say to f/15)?
2) Is there any reason why this would be necessary? I'm thinking that this could give more magnification potential. Right or wrong?
1) How can (or can it) the f/ratio be stepped down (say to f/15)?
2) Is there any reason why this would be necessary? I'm thinking that this could give more magnification potential. Right or wrong?
Nothing in education is so astonishing as the amount of ignorance it accumulates in the form of inert facts.
