Canon EF 70-200mm 2.8 L IS III USM

The Canon EF 70-200mm F2.8L IS III USM is a new updated version of the classic L-series telephoto zoom lens for Canon full-frame and APS-C DSLR cameras. This weather-sealed lens features a constant aperture of f/2.8 throughout the range, built-in 3.5-stop image stabilisation system, minimum focus distance of 1.2m, an ultrasonic focus motor for quiet and fast AF operation, removable tripod collar and a dust- and moisture-sealed construction. The optical formula is comprised of 23 elements in 19 groups with one fluorite element and five ultra-low dispersion glass elements, and it has an iris diaphragm with eight rounded aperture blades. It's also compatible with the optional Canon 1.4x and 2x teleconverters.

The Canon EF 70-200mm f/2.8L IS III USM is another fine lens and one that delivers the goods efficiently. A very fine photographic tool that would be a pleasure to own. There is very little about this lens that isn't resoundingly positive. However, weight and price. Do we need f/2.8 as opposed to f/4? These are the critical factors and of course my own resolution of them may be very different to the next photographer's. In terms of performance both lenses are equally superb. In conclusion though, if you need its specification, then you will not be disappointed by a really great lens. Highly recommended.