Purchased 70-300L for use on my 7D for daylight field sports, and most importantly, to carry while when traveling. Processed (in Lightroom & NIK Suite) images from the 7D + 70-300L compare very favorably with those from my 5D MkII + 70-200L MkII.

Compact; Light weight; Fast auto focus (with both full and panning modes); Full time manual focus; Very sharp images; Responds well to micro focus adjustment

Cost, but then again it has 'L' build quality and performance; Lens collar is both expensive and (currently) unavailable

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

It is not my primary lens, and that is why it only got a 4star (my favourite lenses are always shorter - 50mm for example) but it still great glass. It does get a little heavy for continuous shooting, especially with the heavier camera bodies, but is perfect to shoot people with from a distance at...

Consistent Output; Durable; Easily Interchangeable; Easy to get the hang of; Nice Bokeh; Strong Construction

Challenge to spot subject; Heavy

CANON EF 70-300mm f4-5.6L IS USM review. As a dedicated nature photographer much of my shooting is with wide angle lenses but I recently decided I wanted a telephoto zoom for wildlife, particularly birds. My criteria were: Min.

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

Excellent Zoom Quality

Slow in low light

"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 .

I am an L lens freak, got almost all of them including 7 primes, etc. Well in this case dont listen to us L-lens freaks. This is really a hidden gem. The DO version is useless, the L-version is outstanding, for built quality.

sharpness; lightweight; great IS

only built quality

Handling and features Performance Verdict Specification 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...

Excellent build quality; Very good sharpness that is consistent through the range; Low CA; Low distortion; Effective optical stabilisation

May seem expensive for a f/4-5.6 zoom (although the premium is probably worth the extra in this case

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.