• 70-300mm telephoto zoom lens with f/4.5-5.6 maximum aperture for Canon EOS SLR cameras
• 3-stop Image Stabilizer for reducing camera shake; ring-type ultra-sonic monitor (USM)
• Electro-magnetic diaphragm (EMD) helps create attractive background at large apertures
• Super Spectra lens coating and lens element shaping suppresses flare and ghosting
• Measures 3 inches in diameter and 5.6 inches long; weighs 22.2 ounces; 1-year warranty

This lens delivers over 4x telephoto zoom for Canon autofocus SLR Digital-camera and Film-camera models. AF is super-fast and silent with a ring-type USM, and it focuses down to 4.6 feet without rotating the front element. A new zoom lock button keeps the lens safe and secure when not in use or used at the widest lens perspective. Circular aperture producing attractive background defocus Micro USM and new AF algorithms for fast and quiet autofocus Only environmentally friendly lead-free glass used in lens construction F stop range 4.5-32 / 5.6-38 Closest Focusing Distance 1.4m / 4.6 ft. 4.2x zoom magnification Accepts 58mm size filters Dimensions (Length x Diameter) 3.9 x 3.2 / 99.9 x 82.4mm Weight 25.4 oz. / 720g

This is the best lens you get for the money. I can't believe how great and easy it is to use. I used it to take pictures of my son playing soccer and I could zoom him right up and get close up's that I could not have gotten with a regular lens. Love this lens..................

C. Kemp

I received the Canon 70-300mm lens quickly from Amazon.com. Their service was great. I haven't had the chance to use the lens much yet, but know I will love it.

I am a Canon fanatic and own many lenses and this lens is the one that does not give me that happy glowing feeling. I bought it primarily so when I went to sporting evens I could get closer into the action - I tend to buy seats close rather than sitting at the back of the stands and I am frustrated after a year of ownership.

At 300mm the lens is blurry, it seems to produce inconsistent color when I use bursts (1-2 pictures out of ten come up dark.....?) and it can be slow to focus. I thought I would be able to use this for nature photography however without the predictability of baseball I am not sure I'd be able to snap a birds that might land quickly and dart away again.

Its just not up to the quality of my other Canon lenses. I also think it is shameful that it does not come with a hood considering the price - you can tack on another $40 for that. When all is said and done you may find something similar from Sigma or one of the other producers that is cheaper and of similar quality. I personally wish I had gone that route for once.

It is not bad ... its just not great. I'm looking for a replacement.

Great and powerful lens! I used it with the xsi and will with the 50d. The pics so far are ourstanding. I do think it's a little pricey but the IS system is worth it.

With this lens, I can capture very nice pictures of my kids/nephew/niece. The IS work wells. Handling is good. Bokeh is what I expected.

The only thing that I like to have is the Full-Time Manual Focus which it doesn't have.