One of the greatest lens I've ever used. I had the f/1,8 FD version, which was already stunning, but this new model is even better, especially wide open. And the stabilizer is a great addition. To improve this lens, I can only think about a shorter minimum focusing distance.

Fast auto-focus; Superior build quality; Super-sharp images; bokeh; sharpness wide open; color rendition

heavy; bulky

My favorite lens. This lens is a true beauty that produces unreal and stunning images. The bokeh is creamy smooth, contrast and colors and beautiful and it's razor sharp wide open. It's light enough to handhold for complete two hour engagement sessions and similar events.

bokeh; sharpness; contrast; Image Stabilization

Yes, I would recommend this to a friend

Consistent Output; Fast / accurate auto-focus; Nice Bokeh; Rugged; Strong Construction

Heavy; Tough To Attach

I bought mine via Canon Price Watch brand new. All I can say is that this lens is heavy but you will disregard this once you will see images you take on whatever camera you put this on. This make me sell my 70-200mm F4 and 90mm prime/macro. This is now 99% my primary lens.

This lens by far is now my favorite on my Sony A7R2 with Metabones IV. It is heavy but I really dont mind the weight. When used with Yongnuo 2x TC III it will become a 400mm F4 and the image quality is not affected or undetectable unless you blow it up 1:1 and even if you do this you can still...

This lens is extremely sharp! And I am not easily impressed as I already got Canon's 300 mm f2.8 IS L as well as Canon's 500 mm F4 IS L and 9 other L-lenses. Expensive, yes, but the overall image quality (both on my 1ds MarkII & III) is simply stunning. Portraits, animals, sport, flowers, etc.

This lens is supreme, allowing me to impress my friends and family, eliciting lots of wows and awws, and How much did that cost, comments. Heavy and bulky though but that's the price one must pay.

this glass can be hand held and it is just fun to use in so many settings. you can also add 1,4x and 2.0x and get lots of range and still can hand hold....a really big plus when you are on the move...highly recommend.

Great lens. Superb quality. Lightening fast, focusing. Precise pinpoint accuracy, probably too much. Pricey-yes. Worth it- yes.

Consistent Output; Durable; Fast / accurate auto-focus; Rugged; Strong Construction

Heavy

E' da circa due anni che l'ho acquistato ed ne sono molto soddisfatto. Luminosità, sfocato cremoso, AF silenzioso, preciso e veloce. Perfetta stabilizzazione che consente di scattare a 1/30 a mano libera. Lente molto costosa ma ne vale la pena.