The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tamron 12-20mm f2.8 and the Viltrox 13mm F1.4 Z 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. Tamron 12-20mm f2.8 is the longer of the two lenses at 121mm. The Viltrox 13mm F1.4 Z with a length of 90mm, is 31mm shorter. Besides being longer, the Tamron 12-20mm f2.8 also has a larger diameter of 90mm compared to the Viltrox 13mm F1.4 Z's 74mm 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. Viltrox 13mm F1.4 Z weighs 455g, 22% (130g) lighter than the Tamron 12-20mm f2.8's weight of 585g.
Filter Threads
Both the Tamron 12-20mm f2.8 and the Viltrox 13mm F1.4 Z have the same Filter thread size of 67mm.
Below are links to the 67mm filters that we recommend you to consider for these lenses:
Lens Mounts
Both the Tamron 12-20mm f2.8 and the Viltrox 13mm F1.4 Z has the same Nikon Z lens mount. Some of the latest released cameras that are compatible with the Nikon Z lenses are Nikon ZR, Nikon Z5 II and RED Komodo-X 6K Z.
Tamron 12-20mm f2.8 is also available in the Sony E mount.
Focal Range
Tamron 12-20mm f2.8 has a focal range of 12-20mm and
1.7X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
18 - 30mm.
On the other hand, the Viltrox 13mm F1.4 Z is a prime lens with fixed focal lenght of 13mm which has an effective (full-frame 35mm equivalent) focal range of 19.5mm when used on a APS-C / DX format camera.
