The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tokina atx-m 23mm F1.4 E 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. Tokina Firin 20mm F2 FE MF is the longer of the two lenses at 82mm. The Tokina atx-m 23mm F1.4 E with a length of 72mm, is 10mm shorter. Besides being longer, the Tokina Firin 20mm F2 FE MF also has a larger diameter of 69mm compared to the Tokina atx-m 23mm F1.4 E's 65mm 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 atx-m 23mm F1.4 E weighs 276g, which means it is 214g (43%) lighter than the Tokina Firin 20mm F2 FE MF which has a weight of 490g.
Filter Threads
The Tokina atx-m 23mm F1.4 E has a filter size of 52mm 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 52mm filters that we recommend you to consider for the Tokina atx-m 23mm F1.4 E:
And these are the 62mm filters that we recommend for the Tokina Firin 20mm F2 FE MF:
Lens Mounts
Both the Tokina atx-m 23mm F1.4 E and the Tokina Firin 20mm F2 FE MF has the same Sony E lens mount. Some of the latest released cameras that are compatible with the Sony E lenses are Sony A6700, Sony FX30 and Sony ZV-E10.
Tokina Firin 20mm F2 FE MF is also available in Sony E mount.
Focal Range
Tokina atx-m 23mm F1.4 E is a prime lens with fixed focal lenght of 23mm which has an effective (full-frame 35mm equivalent) focal range of
34.5mm 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.