Pros: Great sharpness across the board. GREAT low light lens with a good bit of reach. use it on my 6D with amazing results and on my 70D when I want a bit more reach from the crop sensor. I love this lense and only wish I used it more. Almost 1000 cheaper than Canons 70-200 f/2.8 L II and nearly as good.

Cons: Non come to mind

Overall Review: Save your money over the L glass and get this with great results. have enough left over to buy another great lens.

Pros: Nice Box

Cons: Watch came with a broken Second Hand... Customer service is poor to get it resolved.

Overall Review: Dont Do IT!

Pros: Good Sharpness, Great Bokeh and good for portraits and product photography.

Cons: AF hunts A LOT. Soft at f/1.4 but corrects at f/1.6 and up. even though its USM it is still very noisy in my opinion and doesnt seem to be able to focus at the 1.5' as advertised the closest I can get is 3'. I might have gotten a bad copy, stil testing it may send it to Canon.

Overall Review: Overall good for the money. Honestly can't say its worth the extra 150 or so dollars over the f/1.8 version.

Pros: Great PSU lots of Connectors long enough to go anywhere... quite and cool. Good build quality.

Cons: Takes up a lot of room with all the cords... not bad just make sure you have pleny of room to hide them.

This is represented as a new item however I recieved a USED or Refurbished White box Item with no original Canon ANYTHING. DO NOT BUY. Buy elsewhere as white box much cheaper.

Poor Customer Service, Poor Watch Quality came with a broken second hand,... saw many similar reviews after I purchased... Still waiting on refund.

They take forever... I have ordered 4 watches from them and apid for the quicker shipping, the watch take like 7 days no matter what... Very upset will not buy another one.