The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 16mm F1.4 DC DN X and the Fujifilm XF 18mm 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 16mm F1.4 DC DN X is the longer of the two lenses at 92mm. The Fujifilm XF 18mm F1.4 R LM WR with a length of 76mm, is 16mm shorter. Besides being longer, the Sigma 16mm F1.4 DC DN X also has a larger diameter of 72mm compared to the Fujifilm XF 18mm F1.4 R LM WR's 69mm diameter.
Below you can find a scaled side-by-side image of Sigma 16mm F1.4 DC DN X and Fujifilm XF 18mm F1.4 R LM WR to get a better idea of how their sizes compare in real life.
Comparison image of the Sigma 16mm F1.4 DC DN X and the Fujifilm XF 18mm F1.4 R LM WR Size and Weight 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 18mm F1.4 R LM WR weighs 370g, 8% (35g) lighter than the Sigma 16mm F1.4 DC DN X's weight of 405g.
Below you can find the dimension and weight table of the Wideangle Prime Lenses in Fujifilm X Mount for size comparison purposes.
Wideangle Fujifilm X Mount
Filter Threads
The Sigma 16mm F1.4 DC DN X has a filter size of 67mm whereas the Fujifilm XF 18mm F1.4 R LM WR 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 67mm filters that we recommend you to consider for the Sigma 16mm F1.4 DC DN X:
And these are the 62mm filters that we recommend for the Fujifilm XF 18mm F1.4 R LM WR:
Lens Mounts
Both the Sigma 16mm F1.4 DC DN X and the Fujifilm XF 18mm 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 .
Focal Range
Sigma 16mm F1.4 DC DN X is a prime lens with fixed focal lenght of 16mm which has an effective (full-frame 35mm equivalent) focal range of
24mm when used on a APS-C / DX format camera.
On the other hand, the Fujifilm XF 18mm F1.4 R LM WR is a prime lens with fixed focal lenght of 18mm which has an effective (full-frame 35mm equivalent) focal range of 27mm when used on a APS-C / DX format camera.
