The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Fujifilm XF 18mm F1.4 R LM WR and the Kamlan 28mm F1.4 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 18mm F1.4 R LM WR is the longer of the two lenses at 76mm. The Kamlan 28mm F1.4 with a length of 65mm, is 11mm shorter. Besides being longer, the Fujifilm XF 18mm F1.4 R LM WR also has a larger diameter of 69mm compared to the Kamlan 28mm F1.4's 55mm 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 18mm F1.4 R LM WR weighs 370g, which means it is 14g (3%) lighter than the Kamlan 28mm F1.4 which has a weight of 384g.
Below you can find the dimension and weight table of the Wideangle Prime Lenses in Fujifilm X Mount for size comparison purposes.
Wideangle Lenses in Fujifilm X Mount for Size Comparison
Filter Threads
The Fujifilm XF 18mm F1.4 R LM WR has a filter size of 62mm whereas the Kamlan 28mm F1.4 has a 52mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 62mm filters that we recommend you to consider for the Fujifilm XF 18mm F1.4 R LM WR:
And these are the 52mm filters that we recommend for the Kamlan 28mm F1.4:
Lens Mounts
Both the Fujifilm XF 18mm F1.4 R LM WR and the Kamlan 28mm F1.4 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.
Kamlan 28mm F1.4 is also available in Canon EF-M , Micro Four Thirds and Sony E mounts.
Focal Range
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.
On the other hand, the Kamlan 28mm F1.4 is a prime lens with fixed focal lenght of 28mm which has an effective (full-frame 35mm equivalent) focal range of 42mm when used on a APS-C / DX format camera.