I bought this because I do a bit of "birding" and I wanted a long lens. The non "L" version was a bit disappointing. This is substantially bulkier, and heavier but oh my, it is terrific!

Sharp as a tack; good fast focusing

Big; heavy; (compared to non L version

We've just tested the Canon EF 70-300mm f/4-5.6 USM L IS within its native full format scope so you may forgive us that we've pretty much copied the introduction. The Canon EF 70-300mm f/4-5.6 USM L IS is the latest addition to their tele zoom lens lineup making it, by far, the most extensive system...