I bought this lens rather than the f2.8 version because of it's size and weight. If compared to the f2.8 version, this lens is approximately half the weight, and noticably smaller. This lens is a joy to hold and use because it's really light, and yet it produces outstanding pictures.

Very lightweight, built like a tank; Zoom ring and the focus ring are all smooth

Sound of the motor is audible

The Canon EF 70-200mm f/4L IS USM ($1,349 direct) isn't as lauded as the company's f/2.8 IS lens with the same zoom range, but it's priced about $650 less, making it an attractive option for shooters who can live with a slower lens.

The Canon EF 70-200mm f/4L IS USM ($1,349 direct) isn't as lauded as the company's f/2.8 IS lens with the same zoom range, but it's priced about $650 less, making it an attractive option for shooters who can live with a slower lens.

Optical stabilization system; Fixed aperture through zoom range; Relatively light; Sharp images

Edges soft when zoomed; Adding a tripod collar is expensive

The Canon EF 70-200mm f/4L IS USM lens captures impressively sharp images and is optically stabilized. It's a good option for shooters who can't afford an f/2.8 zoom. (3.5 out of 5) Pros Optical stabilization system Fixed aperture through zoom range Relatively light Sharp images Cons Edges soft when...

Optical stabilization system; Fixed aperture through zoom range; Relatively light; Sharp images

Edges soft when zoomed; Adding a tripod collar is expensive

The Canon EF 70-200mm f/4L IS USM ($1,349 direct)($1,199.00 at Amazon) isn't as lauded as the company's f/2.8 IS lens with the same zoom range, but it's priced about $650 less, making it an attractive option for shooters who can live with a slower lens. It is similar in design and price to the Nikon AF-S 70-200mm f/4G ED VR($1,396.95 at Amazon) lens. It's compatible with full-frame Canon cameras, and can also be used with APS-C bodies, where it acts more like a 112-320mm lens due to the 1.6x crop factor. It's very sharp across the frame at its widest focal length, but performance at the edges suffers when set to 200mm. Like other Canon L zooms, the lens features a white finish rather than a traditional black. It measures 6.8 by 3 inches (HD) and weighs 1.7 pounds. A hood is included, but not a tripod collar. Adding one helps to better distribute weight when used with a tripod and adds $210 to the cost. It supports 67mm filters and can focus on objects as close as 3.9 feet; that's ...

The Canon EF 70-200mm f/4L IS USM lens captures impressively sharp images and is optically stabilized. It's a good option for shooters who can't afford an f/2.8 zoom.

Optical stabilization system; Fixed aperture through zoom range; Relatively light; Sharp images

Edges soft when zoomed; Adding a tripod collar is expensive

Canon's EF 70-200mm f4.0L IS USM really delivers the goods on both cropped and full-frame bodies. The range may not extend as far as 70-300mm models, but the optical quality is superb and as an 'L' lens, the build quality is also excellent.

Great for shooting my son's flag football games!

Awesome Low Light Lens; Consistent Output; Fast / accurate auto-focus; Strong Construction

Good Product~!

I own this lens which works perfectly. Good thing is that, you will get sharpest image while cropping the aberrant sides and corners of the frame. Image quality is simply awesome. 5 stars for that. !!

i love this lens, paired wit the 7D action shots are a pice of cake and also is versatile when shooting other stuff