Take one of Canon's most popular lenses, the Canon 70-200mm f/4 L , add an up-to-4-stop Image Stabilizer and you get the Canon EF 70-200mm f/4L IS USM Lens. If you don't need the subject-action-stopping and background-blurring capabilities of the faster Canon EF 70-200 f/2.8L IS Lens , this lens...

The lens focuses very fast with almost no noise. The IS function is a nice touch, but I am not sure how practical it really is. Having upgraded from an entry level lens, this lens is much heavier. Images are sharp with great color.

Consistent Output; Easily Interchangeable; Easy To Clean; Sharp Focus; Strong Construction

Slightly Heavy

The EF50/1.2L is a totally new optical design (there was an old FD 50/1.2L) and uses a molded aspheric rear element (the 50/1.0L used two very expensive ground and polished aspherics). It has a true ring type USM motor and a high speed CPU for fast focus.

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

Gary Wolstenholme takes a look at how this compact telephoto zoom lens performs. 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

Hands on

Quite simply an excellent lens. As sharp as primes in its telephoto range, great contrast and colour, and state of the art IS. What it gives up in maximum aperture to the f2.8 version can be forgiven considering it's half the weight and 2/3 the cost.

This was my first significant lens purchase, and it hasn't disappointed. I have a Rebel Xsi, and without the battery grip, this lens would seem a bit large on that body, but otherwise it does a phenomenal job! After much research, I decided to start with this lens to add reach to the kit lens.

Consistent Output; Durable; Easily Interchangeable; Quick Focus; Rugged; Sharp Focus; Strong Construction

Heavy

Canon EF 70-200mm f/4L IS USM is the latest addition to Canon's range of 70-200mm telephoto zooms and fills in the whole in Canon's lineup previously consisting of two faster f/2.8 variants (EF 70-200mm f/2.8L IS USM and EF 70-200mm f/2.8L USM) and another f/4 version (EF 70-200mm f/4L USM).

The Canon EF70-200mm f4L IS USM Telephoto Zoom Lens is a great and versatile lens for landscape and wildlife photography. It is very very sharp with dynamic color. It is not too heavy and is very portable. The focus is just excellent.

Sharp; versatile; portable

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