Conclusion: 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. Other than that, this lens is just perfect from every point of view, regardless of the diaphragm, the lighting or the distance of focus. Bokeh is very beautiful.
Pros: Fast auto-focus, Superior build quality, Super-sharp images, bokeh, sharpness wide open, color rendition
Summary: 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.
Conclusion: Used this lens over the past 4 months and it never ceases to amaze me. Whether I am shooting a low-light dance/music recital or a portrait of a newborn & mother, this lens beautifully portrays the intimacy of the moment I am trying to capture. Simply, this lens makes me look brilliant (which I am not).
Conclusion: After owning this lens for two years, I finally decide to review it, after I sold it not long ago. I bought the lens brand new two years ago. Every praise you read from the previous reviewers is true, period. I am not going to repeat those words here. However, this is not the lens for everybody. I am not saying this for its price. Rather, I am saying this for its weight and size. It is a big hassle to carry this lens around.
Conclusion: 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. I love the thin DOF I can create and the focal length is just perfect for my type of work. My 300 f/2.8 IS is amazing also but sometimes just too much.
Conclusion: I purchased this lens after a lot of research. I had high hopes and expectations of this lens and all I can say is that my expectations were not only met but they were far exceeded. This is THE best lens I have ever used. I cannot fault it in anyway whatsoever. As has been stated before, its heavy but by no means is it unmanageable. The build quality is excellent, the focus speed and accuracy can only be described as insane.
Pros: Insanely accurate and fast focus, amazing bokeh,excellent build qaulity, 4 IS stops (5 effective), pin sharp wide open
Cons: Bigger than the average L lens, somewhat heavier, expensive
Summary: Unbelievable lens which will get you attention and other people around you . The speed is what you need for low light sports. The image stabilization works great. Built quality is great and awesome weather seals. I would say the absolute best in-door concert and event lens ever created. Picture quality is so perfect that first time I realized what my camera's sensor can do. The depth of field or DOF on this lens is so well defined and still it is razor sharp.
Pros: Consistent Output, Fast / accurate auto-focus, Nice Bokeh, Rugged, Strong Construction
Summary: Yes it is. I'm sure others have raved and if you go to the sports photography web site...SportsShooter..they will all tell you this is the best. Canon stopped making them apparently due to the lead required to make the glass. In low light...nothing can beat this lens hands down. Slap a 1.4x extender on it and you have almost a 300mm lens with f2.5. If you can find one in good condition...it is well worth the money.