Skip to main content
edited title
Link
Qmechanic
  • 213.1k
  • 48
  • 590
  • 2.3k

can Can a concave lens be used as a eyepiece in refracting telescopes instead of a convex lens

Source Link

can a concave lens be used as a eyepiece in refracting telescopes instead of a convex lens

Whats the harm if we use concave lens as eyepiece instead of another convex lens? We just need to make the foci of eyepiece and objective coincide.