Canon EF 70-200mm f/4L USM Lens Review
The Canon EF 70-200mm f/4L USM Lens is arguably Canon's best value "L" Lens, combining professional grade build and optical qualities.. Though solidly built, the 70-200 f/4L is relatively light (25 oz / 705g). Actually it is very light and small compared to the much more substantial Canon EF 70-200 f/2.8L Lens or the Canon EF 70-200mm f/2.8L IS II …