Here is an article I copied a while back. It does not list by price, but does a good job of explaining lens values, by features.
Generally white canon lenses are more expensive, and the red, or green band further designates pro, or advance amateur lenses.
Short article, not sorted by pricing
Canon Lens Abbreviations
Attached file:
(
Download)
If you want to reply, then
register here. Registration is free and your account is created instantly, so you can post right away.