The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Kamlan 28mm F1.4 and the Fujifilm 27mm F2.8 for their suitability to various photography scenarios:
Size and Weight Comparison
The size of a lens is an important deciding factor when comparing two lenses. Kamlan 28mm F1.4 is the longer of the two lenses at 65mm. The Fujifilm 27mm F2.8 with a length of 23mm, is 42mm shorter. On the other hand, the Fujifilm 27mm F2.8 has a larger diameter of 61mm compared to the Kamlan 28mm F1.4's 55mm diameter.
The weight of a lens is as important as its external dimensions, especially if you are planning to hand hold your camera and lens combination for longer periods. Fujifilm 27mm F2.8 weighs 78g, 79% (306g) lighter than the Kamlan 28mm F1.4's 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 Prime Lenses in Fujifilm X Mount for Size Comparison
Lens Mounts
Both the Kamlan 28mm F1.4 and the Fujifilm 27mm F2.8 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.
Kamlan 28mm F1.4 is also available in Canon EF-M , Micro Four Thirds and Sony E mounts.
Focal Range
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. Fujifilm 27mm F2.8 is a prime lens with fixed focal lenght of 27mm which has an effective (full-frame 35mm equivalent) focal range of 40.5mm when used on a APS-C / DX format camera.