The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tamron 11-20mm F2.8 Di III-A and the Fujifilm XF 10-24mm F4 R 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. Fujifilm XF 10-24mm F4 R is the longer of the two lenses at 87mm. The Tamron 11-20mm F2.8 Di III-A with a length of 86mm, is 1mm shorter. Besides being longer, the Fujifilm XF 10-24mm F4 R also has a larger diameter of 78mm compared to the Tamron 11-20mm F2.8 Di III-A's 73mm diameter.
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Below you can find a scaled side-by-side image of Tamron 11-20mm F2.8 Di III-A and Fujifilm XF 10-24mm F4 R to get a better idea of how their sizes compare in real life.
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 Di III-A weighs 335g, which means it is 75g (18%) lighter than the Fujifilm XF 10-24mm F4 R which has a weight of 410g.
Below you can find the dimension and weight table of the Wideangle Zoom Lenses in Fujifilm X Mount for size comparison purposes.
Ultra-Wideangle Lenses in Fujifilm X Mount for Size Comparison
Filter Threads
The Tamron 11-20mm F2.8 Di III-A has a filter size of 67mm whereas the Fujifilm XF 10-24mm F4 R has a 72mm 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 Tamron 11-20mm F2.8 Di III-A:
And these are the 72mm filters that we recommend for the Fujifilm XF 10-24mm F4 R:
Lens Mounts
Both the Tamron 11-20mm F2.8 Di III-A and the Fujifilm XF 10-24mm F4 R has the same Fujifilm X lens mount. Some of the latest released cameras that are compatible with the Fujifilm X lenses are Fujifilm X-S20, Fujifilm X-T5 and Fujifilm X-H2.
Tamron 11-20mm F2.8 Di III-A is also available in Sony E mount.
Focal Range
Tamron 11-20mm F2.8 Di III-A 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.
On the other hand, the Fujifilm XF 10-24mm F4 R has a focal range of 10-24mm and 2.4X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 15-36mm when used on a APS-C / DX format camera.