The Canon EF 70-200mm f4 IS USM L lens is a professional grade 70-200mm lens without the size and heft, as well as price, as found in f2.8 versions.

Professional grade build quality, including dust and moisture sealing; four stops of image stabilization system; relatively lightweight

The tripod collar is optional; relatively expensive

You want a medium telephoto lens for your Canon dSLR, something with a constant aperture, solidly built with pro quality, yet light enough to carry on adventure to some faraway part of the world. You have looked at the f2.8 models but didn't think you could afford them or the Sherpa to carry them.

Professional grade build quality, including dust and moisture sealing; four stops of image stabilization system; relatively lightweight

The tripod collar is optional; relatively expensive

It's the IS in the name that distinguishes the Canon EF 70-200mm f/4L IS USM from the cheaper 70-200mm f/4L USM. The lenses are virtually the same size and shape, but the more expensive of the pair comes with built-in 4-stop image stabilisation (IS).

Another great lens from Canon. I have loved this lens very much when using in tripod, unfortunately cannot use those focal lengths without IS.

great IQ and build; lightweight for its category

lack of IS with those focal lengths; but you can get the IS version if this is a concern

This lens is perfect for taking action shots in good light

Lots of professional features for a fraction of the cost ; well-constructed ; slightly slow for action/sports photography, but a marked step in the right direction

Durable; Lightweight; Rugged; Strong Construction

Slow Focus

This Canon EF 70-200mm f/4L USM Lens has an amazing deal to be with. The quality of the lens is great.It also gives an amazing image quality. It also has auto focus features. The angles and adjustability is good.

This compact telephoto lens comes with an Image Stabilizer that compensates for camera shake so you can shoot at up to 4 shutter speed steps slower without blur. The lens optical system uses one fluorite lens element and two UD lens elements to render high-resolution, high-contrast image quality at...

Canon's EF 70-200mm f/4L IS USM costs around £800 and has an Image Stabiliser, silent Ultrasonic focusing with full time manual override and is sealed against dust and moisture.

Excellent optical quality; Superb build quality; Very effective image stabilisation; Fast to focus; Sealed against weather and dust; Light weight

Sometime miss-focuses near minimum focus distance

Canon users were always gifted with a broad range of excellent tele lenses, especially zooms. At the time the Canon EF 70-200mm f/4 USM L hit the market back in 1999 it was another milestone but there was one itch left: wouldn't it be nice to have this lens with an image stabilizer ?