The EF 1200mm F/5.6L is 36 lbs and comes with its own tripod and massive transport case (I hesitate to call it a "carrying case.") For a variety of reasons, the original tripod is rarely used. It's nearly has heavy as the damn lens, and not terribly easy to adjust. The truth is, 1200mm is not a very useful focal length on full frame, and even less so on a cropped sensor. There's a reason that Canon only sold ten 1200Ls in a dozen years of production (besides the $120,000 asking price). The used used copy B&H had for sale was a pretty slow mover. With the advent of DSLRs shooting video, the 1200L has gained some usability it previously lacked. I saw a pretty good short on Vimeo of a guy filming birds with the 1200L and a 5DII. Birders are about the only people who has much need for such an extreme focal length.