The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tokina Firin 20mm F2 FE MF and the Sony E 20mm F2.8 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 Firin 20mm F2 FE MF is the longer of the two lenses at 82mm. The Sony E 20mm F2.8 with a length of 20mm is 62mm shorter. Besides being longer, the Tokina Firin 20mm F2 FE MF also has a larger diameter of 69mm compared to Sony E 20mm F2.8's 63mm 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. Sony E 20mm F2.8 weighs 69g, 85% (421g) lighter than the Tokina Firin 20mm F2 FE MF's weight of 490g.
Below you can find the dimension and weight table of the 'Wideangle Prime Lenses in Sony E Mount for size comparison purposes.
Wideangle Prime Lenses in Sony E Mount for Size Comparison
Both Tokina Firin 20mm F2 FE MF and Sony E 20mm F2.8 has the same Sony E lens mount. Some of the latest released cameras that are compatible with the Sony E lenses are Sony A7R V, Sony FX30 and Sony A7 IV.
Tokina Firin 20mm F2 FE MF is also available in Sony E mount.