The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 16mm F1.4 C and the Tokina Firin 20mm F2 FE MF 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. Sigma 16mm F1.4 C is the longer of the two lenses at 92mm. The Tokina Firin 20mm F2 FE MF with a length of 82mm, is 10mm shorter. Besides being longer, the Sigma 16mm F1.4 C also has a larger diameter of 72mm compared to the Tokina Firin 20mm F2 FE MF's 69mm 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 16mm F1.4 C weighs 405g, which means it is 85g (17%) lighter than the Tokina Firin 20mm F2 FE MF which has a weight of 490g.
Filter Threads
The Sigma 16mm F1.4 C has a filter size of 67mm whereas the Tokina Firin 20mm F2 FE MF has a 62mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 67mm filters that we recommend you to consider for the Sigma 16mm F1.4 C:
And these are the 62mm filters that we recommend for the Tokina Firin 20mm F2 FE MF:
Lens Mounts
The Sigma 16mm F1.4 C has the Nikon Z lens mount whereas the Tokina Firin 20mm F2 FE MF has the Sony E lens mount. Some of the latest released cameras that are compatible with these mounts are RED Komodo-X 6K Z, Nikon Z50 II and Nikon Z30 for the Nikon Z Mount and Sony FX5, Sony A7R VI and Sony A7 V for the Sony E Mount.
Sigma 16mm F1.4 C is also available in the Canon RF mount.
Tokina Firin 20mm F2 FE MF is also available in Sony E mount.
Focal Range
Sigma 16mm F1.4 C is a prime lens with fixed focal lenght of 16mm which has an effective (full-frame 35mm equivalent) focal range of
24mm when used on a APS-C / DX format camera.
On the other hand, the Tokina Firin 20mm F2 FE MF is a prime lens with fixed focal lenght of 20mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 30mm.
