The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Viltrox 13mm F1.4 XF and the Tamron 11-20mm F2.8 X 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. Viltrox 13mm F1.4 XF is the longer of the two lenses at 90mm. The Tamron 11-20mm F2.8 X with a length of 86mm, is 4mm shorter. Besides being longer, the Viltrox 13mm F1.4 XF also has a larger diameter of 74mm compared to the Tamron 11-20mm F2.8 X's 73mm 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. Tamron 11-20mm F2.8 X weighs 335g, 20% (85g) lighter than the Viltrox 13mm F1.4 XF's weight of 420g.
Filter Threads
Both the Viltrox 13mm F1.4 XF and the Tamron 11-20mm F2.8 X 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 Viltrox 13mm F1.4 XF and the Tamron 11-20mm F2.8 X has the same Fujifilm X lens mount. Some of the latest released cameras that are compatible with the Fujifilm X lenses are Fujifilm X-T30 III, Fujifilm X-E5 and Fujifilm X-M5.
Focal Range
Viltrox 13mm F1.4 XF 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.
On the other hand, the Tamron 11-20mm F2.8 X has a focal range of 11-20mm and 1.8X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 16.5-30mm when used on a APS-C / DX format camera.