Love using this lens. It really has increased my overall use of my DSLR. I am able to take photos from a distance and really capture a natural shot since I don't have to be close to the object. Overall I am very happy with this lens. Would recommend to any starter using a DSLR.

Durable; Fast / accurate auto-focus; Strong Construction

Heavy

Great Lens would love a more expensive one f2 is usm ..but this is great very good lens for the money

Great for outdoor sports and other daytime activities. Decent in lower light settings such as nighttime sporting events.

Excellent Zoom Quality

Slow in low light

I bought this lens on sale, other wise I would not have purchased it. I take pics of birds and my results with this lens were disappointing at best. I was previously using a 55-250mm IS ll at half the cost and the results were spectacular by comparison.

I had bought a Canon Rebel T3i just after Christmas....I took it on my vacation in Jan/13 and was very impressed with the quality of the pics....but I wished I had the EF 70-300mm f/4.0-5.6IS USM telephoto lens for the distance shots that I missed...

I have used and using this lens for some time now and it is probably the best lens I have ever used, the image quality the sharpness is excellent, my experience with this lens has been fantastic definitely a must have lens for all canon slr users.

For an amazing telephoto zoom, with terrific image quality and amazing build quality, look no further than the all around performer that is the Canon 70-300L

Amazing build quality; Stunning image quality; Fast and accurate AF; Rock solid IS

Canon doesn't provide a tripod collar with the lens; you have to buy it after

"In this zoom range there are many lenses to compare and it wasn't an easy decision. For me it came down to this lens or the 70-200 f/4 L IS USM and after trying both in the store I went with the 70-300 .

Handling and features Canon have given the 70-300mm range an L-series makeover and as a result this lens sports silent autofocus, with full-time manual override, weather sealing, optical stabilisation and tougher build quality than you might normally find on a lens covering this range.

See examples Conclusions: The Canon EF 70-300mm f/4.5-5.6 DO IS USM is a compact, very fast-focusing zoom telephoto lens that provides generally excellent imaging function including excellent image stabilization at a high price. It is a weak performer at 300mm.