The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tamron 10-24mm F3.5-4.5 Di II VC HLD and the Canon 17-55mm f2.8 IS USM 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 17-55mm f2.8 IS USM is the longer of the two lenses at 111mm. The Tamron 10-24mm F3.5-4.5 Di II VC HLD with a length of 85mm, is 26mm shorter. On the other hand, there is no difference between the max diameters of these lenses, both coming at 84mm.
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. Tamron 10-24mm F3.5-4.5 Di II VC HLD weighs 440g, which means it is 205g (31%) lighter than the Canon 17-55mm f2.8 IS USM which has a weight of 645g.
Filter Threads
Both the Tamron 10-24mm F3.5-4.5 Di II VC HLD and the Canon 17-55mm f2.8 IS USM have the same Filter thread size of 77mm.
Below are links to the 77mm filters that we recommend you to consider for these lenses:
Lens Mounts
Both the Tamron 10-24mm F3.5-4.5 Di II VC HLD and the Canon 17-55mm f2.8 IS USM has the same Canon EF-S lens mount. Some of the latest released cameras that are compatible with the Canon EF-S lenses are Canon T8i, Canon 90D and Canon SL3.
Tamron 10-24mm F3.5-4.5 Di II VC HLD is also available in the Nikon F (DX) mount.
Focal Range
Tamron 10-24mm F3.5-4.5 Di II VC HLD has a focal range of 10-24mm and
2.4X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of
16-38.4mm when used on a APS-C / DX format camera.
On the other hand, the Canon 17-55mm f2.8 IS USM has a focal range of 17-55mm and 3.2X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 27.2-88mm when used on a APS-C / DX format camera.