The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tamron SP 15-30mm F2.8 Di VC USD G2 and the Tokina 12-24mm f4 DX for their suitability to various photography scenarios:
Size and Weight Comparison
Size of a lens is an important deciding factor when comparing two lenses.Tamron SP 15-30mm F2.8 Di VC USD G2 is the longer of the two lenses at 145mm. The Tokina 12-24mm f4 DX with a length of 90mm is 55mm shorter. Besides being longer, the Tamron SP 15-30mm F2.8 Di VC USD G2 also has a larger diameter of 98mm compared to Tokina 12-24mm f4 DX's 84mm 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. Tokina 12-24mm f4 DX weighs 570g, 48% (540g) lighter than the Tamron SP 15-30mm F2.8 Di VC USD G2's weight of 1110g.
Both Tamron SP 15-30mm F2.8 Di VC USD G2 has the Nikon F (FX) lens mount whereas the Tokina 12-24mm f4 DX has the Nikon F (DX) lens mount. Some of the latest released cameras that are compatible with these mounts are Nikon D6, Nikon D780 and Nikon D3500 for the Nikon F (FX) Mount and Nikon D3500, Nikon D7500 and Nikon D5600 for the Nikon F (DX) Mount.
Tamron SP 15-30mm F2.8 Di VC USD G2 is also available in Canon EF mount.
Tokina 12-24mm f4 DX is also available in Canon EF mount.
Tamron SP 15-30mm F2.8 Di VC USD G2 has a focal range of 15-30mm and 2.0X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides an 35mm (FF) equivalent of 22.5 - 45mm.
Tokina 12-24mm f4 DX has a focal range of 12-24mm and 2.0X zoom ratio which has a 35mm equivalent focal range of 18-36mm when used on a APS-C / DX format camera.