How to Buy a Lens - Guest post by Peter Lopez
Posted in Photography on Dec 22nd, 2006
Lenses are kind of like shoes, you really only NEED one pair; but it is nice to have more.
The basic factors effecting lens selection are:
1) How much light they let through: This is given by the f-stop range, which is the ratio of the aperture to the focal length, given in what look like an [...]