The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tokina 12-28mm f4 Pro DX and the Samyang 10mm f2.8 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 12-28mm f4 Pro DX is the longer of the two lenses at 90mm. The Samyang 10mm f2.8 with a length of 77mm, is 13mm shorter. On the other hand, the Samyang 10mm f2.8 has a larger diameter of 86mm compared to the Tokina 12-28mm f4 Pro DX's 84mm 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. Tokina 12-28mm f4 Pro DX weighs 530g, which means it is 50g (8%) lighter than the Samyang 10mm f2.8 which has a weight of 580g.
Lens Mounts
Both the Tokina 12-28mm f4 Pro DX and the Samyang 10mm f2.8 has the same Canon EF lens mount. Some of the latest released cameras that are compatible with the Canon EF lenses are Canon T8i, Canon 90D and Canon SL3.
Tokina 12-28mm f4 Pro DX is also available in Nikon F (DX) mount.
Samyang 10mm f2.8 is also available in Canon EF-M , Fujifilm X, Nikon F (DX), Four Thirds and Micro Four Thirds mounts.
Focal Range
Tokina 12-28mm f4 Pro DX has a focal range of 12-28mm and
2.3X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of
19.2-44.8mm when used on a APS-C / DX format camera.
On the other hand, the Samyang 10mm f2.8 is a prime lens with fixed focal lenght of 10mm which has an effective (full-frame 35mm equivalent) focal range of 16mm when used on a APS-C / DX format camera.