F number

  • #1
how F-number of a lens and spherical aberration are related?
 

Answers and Replies

  • #2
davenn
Science Advisor
Gold Member
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the faster the lens (or parabolic mirror in a telescope) the greater the probability of spherical aberration

f2 worse aberration than f5 which would be worse than a f10
there may be formula for working it out ... I dont know them ;)

Dave
 

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