Portrait photography is not exactly "ebay photography," but it's something almost everyone wants to do at some time. Moving up from basic snapshots is easy, especially if you know just a few things about lighting and posing.

Below is a link to one of the better online guides I've found for portrait photography novices.

 

Chuck Gardner's Photo Class

 

I'm often asked what focal length of lens is suitable for sports, wildlife or other photo subjects. The calculator below will help you answer this question yourself.
 

Calculate field of view and compare focal lengths of all the major film formats with this field-of-view calculator. It's three calculators in one. You can also calculate focal length and focus distance.