Quote:
Originally Posted by Satchmo
They are hiding from you.
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They don't really make em. They make ~f/4.5 and then don't tell u that u need paracorr at that ratio. They push the limits to get the aperature/weight ratio high for sale. My digital camera gives fish-eye at that ratio. I have learned that it must be set to f/8 to get crisper images. sO I am gonna do something radical and make a 4" f/50 scope. I will only be able to point at the horizon and stuff but it will be the first in the world! 6 meter focul length, lol. Who wants to make a primary f/50 for me? actually i need to think about that, will release a tender later this year.