Pros:Robust, f4 at all focal lengths, stabilizer great, made me great.
Cons:some problems to 24mm, the weight, but what expect from a handyman so good.
Opinion:Goal that no more detachment from the machine 5D. Truly a perspective for amateur, exploitable in many occasions. Landscapes, close-ups, on the stand in the evening ... what else to say, other goals now I take them only spasso.Portandolo walking the weight feels a bit, but does not disturb more than tanto.Lo often use with the polarizer, and I am always surprised by the yield. I have not encountered problems in my lens flare, highly recommended.
Pros:Solid, sturdy, silent AF, MAF lift pump, crisp and bright.
Cons:Weight (but the strength you pay.) Only for APS-C.
Opinion:I use it mainly with Canon 50D, to take pictures with his son, who plays soccer. Due to the short distance of the field of play, I am not okay with this focal indeed, often do not go down by 75. Bright and clear, it is fun to try to usare.Debbo some concerts and possibly for the first piani.Lo recommend it, for its robustness and ease of use. You will not be regretted. Without this positive experience, I think I take 16_28 f2, 8 ... if it gives me so much! Hostel I've ever