This medium telephoto zoom is one of a number of lenses that Canon make in the 70–200, 300mm range. It is middling in price and performance, ideal for anyone looking for a good lens for occasional use.
This is a sweet and smooth lens in use; Auto focus is fast enough and the feel of zoom and focus controls is good; It is light enough to carry around without getting a pain in the neck, yet not so light that there are worries about durability
There is slight barrel distortion at the wide end – nothing to worry about in field use – and slightly more pincushion at the 300mm end; It is easy enough to correct in Photoshop