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 Tokina 12-24mm f4 DX II for their suitability to various photography scenarios:
Size and Weight Comparison
Size of a lens is an important deciding factor when comparing two lenses.Tokina 12-24mm f4 DX II is the longer of the two lenses at 90mm. The Tamron 10-24mm F3.5-4.5 Di II VC HLD with a length of 85mm is 5mm shorter. On the other hand, there is no difference between the max diameters of these lenses, both coming at 84mm.
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 10-24mm F3.5-4.5 Di II VC HLD weighs 440g, which means it is 100g (18%) lighter than the Tokina 12-24mm f4 DX II which has a weight of 540g.
Lens Mounts
Both Tamron 10-24mm F3.5-4.5 Di II VC HLD has the Canon EF-S lens mount whereas the Tokina 12-24mm f4 DX II has the Canon EF lens mount. Some of the latest released cameras that are compatible with these mounts are Canon T8i, Canon 90D and Canon SL3 for the Canon EF-S Mount and Canon T8i, Canon 90D and Canon SL3 for the Canon EF Mount.
Tamron 10-24mm F3.5-4.5 Di II VC HLD is also available in Nikon F (DX) mount.
Tokina 12-24mm f4 DX II is also available in 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. Tokina 12-24mm f4 DX II has a focal range of 12-24mm and 2.0X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 19.2-38.4mm when used on a APS-C / DX format camera.