Great walk around lens
Sharp fast lens only problem is my wife liked it so much I had to buy her one too! We have both had great success capturing superb images with this lens its a must have. Tack sharp even in low light.
May 1, 2014
This is my first L lens and I have a slightly mixed opinion so far. The build quality, focus speed/accuracy and general image quality seem fantastic. However, I have not found the sharpness to be quite what I hoped for; on center it's similar to my previous non-L tele, and not as good as my inexpensive 50mm f1.8 II. It is a versatile lens, but with a fairly significant weight & cost.
March 18, 2014
Great All Purpose lens
I love this lens...I use it often...even over my 24-70mm...with the IS this lens is as good as the 24-70mm. It is very light and on the 5D3 and 1DX it is very sharp at 70mm...it does have some vignetting at 24mm...but nothing that cannot be corrected in post processing...A great all purpose lens!
February 14, 2014
Amazing all around
This lens is great if you are just starting to purchase L lenses. This is amazing all around and great for video, basically an all purpose L lens. It allows you to experiment with many focal lengths to let you know what lens to buy next. My only improvement would be a hybrid IS system (like in the 100mm macro L) and a faster aperture like f/2.8.
January 15, 2014