Attached Link: http://www.silverlight.co.uk/tutorials/toc.html

Jinx - Ok..took a look and you don't need a tripod collar for that lens (Nikon 70-300mm f/4-5.6G, right?). It's a compact zoom, it's only 4.6" long and only weighs 16.5oz. No need at all for a tripod collar for that one. To give you an idea of when a collar is necessary, the 70-200mm f/2.8L IS lens I shoot with from Canon is 7.8" long and weighs 3.24lbs (yes, that's pounds) - 197mm and 1.47kg for our metric friends. :) Hey, check out the above link. It's a site with some basic photography tutorials. Don't take everything there as the gospel, but it's a good starting point for learning the basics. -=>Donald