The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tokina 11-16mm f2.8 DX II and the Sigma 10-20mm F4-5.6 EX DC HSM 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. Tokina 11-16mm f2.8 DX II is the longer of the two lenses at 89mm. The Sigma 10-20mm F4-5.6 EX DC HSM with a length of 81mm, is 8mm 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. Sigma 10-20mm F4-5.6 EX DC HSM weighs 470g, 16% (90g) lighter than the Tokina 11-16mm f2.8 DX II's weight of 560g.
Filter Threads
Both the Tokina 11-16mm f2.8 DX II and the Sigma 10-20mm F4-5.6 EX DC HSM 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
The Tokina 11-16mm f2.8 DX II has the Nikon F (DX) lens mount whereas the Sigma 10-20mm F4-5.6 EX DC HSM has the Four Thirds lens mount. Some of the latest released cameras that are compatible with these mounts are Nikon D3500, Nikon D7500 and Nikon D5600 for the Nikon F (DX) Mount and , and for the Four Thirds Mount.
Tokina 11-16mm f2.8 DX II is also available in the Canon EF and Sony Alpha mounts.
Sigma 10-20mm F4-5.6 EX DC HSM is also available in Canon EF , Pentax KAF, Sony Alpha, Sigma SA and Nikon F (DX) mounts.
Focal Range
Tokina 11-16mm f2.8 DX II has a focal range of 11-16mm and
1.5X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of
16.5-24mm when used on a APS-C / DX format camera.
On the other hand, the Sigma 10-20mm F4-5.6 EX DC HSM has a focal range of 10-20mm and 2.0X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 15-30mm when used on a APS-C / DX format camera.