The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tokina 12-24mm f4 DX II and the Sigma 10mm F2.8 EX DC HSM Fisheye 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 12-24mm f4 DX II is the longer of the two lenses at 90mm. The Sigma 10mm F2.8 EX DC HSM Fisheye with a length of 83mm, is 7mm shorter. Besides being longer, the Tokina 12-24mm f4 DX II also has a larger diameter of 84mm compared to the Sigma 10mm F2.8 EX DC HSM Fisheye's 76mm 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. Sigma 10mm F2.8 EX DC HSM Fisheye weighs 475g, 12% (65g) lighter than the Tokina 12-24mm f4 DX II's weight of 540g.
Lens Mounts
Both the Tokina 12-24mm f4 DX II and the Sigma 10mm F2.8 EX DC HSM Fisheye has the same Nikon F (DX) lens mount. Some of the latest released cameras that are compatible with the Nikon F (DX) lenses are Nikon D3500, Nikon D7500 and Nikon D5600.
Tokina 12-24mm f4 DX II is also available in the Canon EF mount.
Sigma 10mm F2.8 EX DC HSM Fisheye is also available in Canon EF and Sigma SA mounts.
Focal Range
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
18-36mm when used on a APS-C / DX format camera.
On the other hand, the Sigma 10mm F2.8 EX DC HSM Fisheye is a prime lens with fixed focal lenght of 10mm which has an effective (full-frame 35mm equivalent) focal range of 15mm when used on a APS-C / DX format camera.
