The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tamron AF 28-200mm f3.8-5.6 XR and the Canon 28-200mm f3.5-5.6 USM for their suitability to various photography scenarios:
Size and Weight Comparison
Size of a lens is an important deciding factor when comparing two lenses.Canon 28-200mm f3.5-5.6 USM is the longer of the two lenses at 90mm. The Tamron AF 28-200mm f3.8-5.6 XR with a length of 75mm is 15mm shorter. Besides being longer, the Canon 28-200mm f3.5-5.6 USM also has a larger diameter of 78mm compared to Tamron AF 28-200mm f3.8-5.6 XR's 71mm diameter.
Weight of a lens is as important as its external dimensions, especially if you are planning to hand hold your camera and lens combination for longer periods. Tamron AF 28-200mm f3.8-5.6 XR weighs 354g, which means it is 146g (29%) lighter than the Canon 28-200mm f3.5-5.6 USM which has a weight of 500g.
Below you can find the dimension and weight table of the 'SuperZoom Lenses in Canon EF Mount for size comparison purposes.
SuperZoom Lenses in Canon EF Mount for Size Comparison
Both Tamron AF 28-200mm f3.8-5.6 XR and Canon 28-200mm f3.5-5.6 USM has the same Canon EF lens mount. Some of the latest released cameras that are compatible with the Canon EF lenses are Canon 1D X III, Canon 6D MII and Canon 5D MIV.
Tamron AF 28-200mm f3.8-5.6 XR is also available in Nikon F (FX) , Sony Alpha and Pentax KAF mounts.