What mean 50mm, 24mm -105mm,14mm to afferico,70mm -200mm, 50mm macro and 50 mm micro and 50mm normal?

Question

i need information because i take a course and my teachjr asking..

Answer 1

Basically it is all focal lengths of lenses available and 50mm being normal as in 50mm is about what our eye sees. Hope that helped

Answer 2

Those are focal ranges I believe, for lenses.

Macro is close up, micro is when you use a fiberoptic lens adapter.....