The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 17-40mm f1.8 and the Fujifilm XF 33mm F1.4 R LM WR 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 17-40mm f1.8 is the longer of the two lenses at 116mm. The Fujifilm XF 33mm F1.4 R LM WR with a length of 74mm, is 42mm shorter. Besides being longer, the Sigma 17-40mm f1.8 also has a larger diameter of 73mm compared to the Fujifilm XF 33mm F1.4 R LM WR's 67mm 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. Fujifilm XF 33mm F1.4 R LM WR weighs 360g, 32% (175g) lighter than the Sigma 17-40mm f1.8's weight of 535g.
Filter Threads
The Sigma 17-40mm f1.8 has a filter size of 67mm whereas the Fujifilm XF 33mm F1.4 R LM WR has a 58mm 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 17-40mm f1.8:
And these are the 58mm filters that we recommend for the Fujifilm XF 33mm F1.4 R LM WR:
Lens Mounts
Both the Sigma 17-40mm f1.8 and the Fujifilm XF 33mm F1.4 R LM WR 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.
Sigma 17-40mm f1.8 is also available in the Sony E , Leica L and Canon RF mounts.
Focal Range
Sigma 17-40mm f1.8 has a focal range of 17-40mm and
2.4X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of
25.5-60mm when used on a APS-C / DX format camera.
On the other hand, the Fujifilm XF 33mm F1.4 R LM WR is a prime lens with fixed focal lenght of 33mm which has an effective (full-frame 35mm equivalent) focal range of 49.5mm when used on a APS-C / DX format camera.
