The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tamron AF 28-80mm f3.5-5.6 and the Canon 28-90mm f4.0-5.6 II for their suitability to various photography scenarios:
Size and Weight Comparison
The size of a lens is a crucial factor to consider when comparing two lenses. Canon 28-90mm f4.0-5.6 II is the longer of the two lenses at 71mm. The Tamron AF 28-80mm f3.5-5.6 with a length of 70mm, is 1mm shorter. On the other hand, the Tamron AF 28-80mm f3.5-5.6 has a larger diameter of 72mm compared to the Canon 28-90mm f4.0-5.6 II's 67mm diameter.
The weight of a lens is equally significant as its external dimensions, particularly if you intend to handhold your camera and lens combination for extended periods. Canon 28-90mm f4.0-5.6 II weighs 180g, 24% (57g) lighter than the Tamron AF 28-80mm f3.5-5.6's weight of 237g.
Below you can find the dimension and weight table of the Standard Zoom Lenses in Canon EF Mount for size comparison purposes.
Standard Lenses in Canon EF Mount for Size Comparison
Filter Threads
Both the Tamron AF 28-80mm f3.5-5.6 and the Canon 28-90mm f4.0-5.6 II have the same Filter thread size of 58mm.
Below are links to the 58mm filters that we recommend you to consider for these lenses:
Lens Mounts
Both the Tamron AF 28-80mm f3.5-5.6 and the Canon 28-90mm f4.0-5.6 II 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 28-80mm f3.5-5.6 is also available in Nikon F (FX) , Sony Alpha and Pentax KAF mounts.
Focal Range
Tamron AF 28-80mm f3.5-5.6 has a focal range of 28-80mm and
2.9X zoom ratio . When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of
44.8 - 128mm.
On the other hand, the Canon 28-90mm f4.0-5.6 II has a focal range of 28-90mm and 3.2X zoom ratio . When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of 44.8 - 144mm.