I have already photographed with the FD version of this lens and this was the time when I am in love with this reference a lens. At that time, to FD times it was offered in 2 variants, the non-L-version a real stillbirth was (not a real focal plane, no aspherical lenses ...). Here are the EF version with image stabilizer and USM is simply a weapon! It is hard and well in the hand, but is still in dimensions that can be easily handlen without a tripod. Since the GeLiBl is integrated, you have to not mess around large and has all there. Stativschelle is included, also really fair because Canon for nearly 150 charged separately. Respect. the sharpness I can only say: class, both as a portrait optics as well as telephoto, sharp, great color beautiful bokeh. The strong stabilizer also does good his service, I have 800 1 / 80s out of the hands photographed in the interior at Iso: sharp! Some note that the 2.8 L 300mm is even sharper, which the laboratory probably true. The costs and but also weighs 3 times and as handheld shots are probably quite possible but very tiring! Very nice detail: the 77-ies front thread, as with many other lenses also (eg 17-40mm L or 24-105L), you'll save yourself the extra pole / or ND filter. Not only because of its size, but also qualitatively the coronation of my equipment!