Features

Can anybody explains to me the details of the f#.#-#.# thing, and the mm thing?

 

Welcome to TPF!

Start by using Wikipedia and look up the following:

aperture
focal length
Depth-of-field
Focal ratio

That should get you started. Good luck.

 

hmmmmmmm (to borrow a phrase), what type of camera do you have and does it have a manual?

mike

 

a little more....

 

Thank You very much Stretch Armstrong and JIP!!!