The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Venus Laowa 4mm F2.8 X and the Fujifilm XF 8mm F3.5 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. Fujifilm XF 8mm F3.5 WR is the longer of the two lenses at 53mm. The Venus Laowa 4mm F2.8 X with a length of 26mm, is 27mm shorter. Besides being longer, the Fujifilm XF 8mm F3.5 WR also has a larger diameter of 68mm compared to the Venus Laowa 4mm F2.8 X's 61mm diameter.
Below you can find a scaled side-by-side image of Venus Laowa 4mm F2.8 X and Fujifilm XF 8mm F3.5 WR to get a better idea of how their sizes compare in real life.
Comparison image of the Venus Laowa 4mm F2.8 X and the Fujifilm XF 8mm F3.5 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. Venus Laowa 4mm F2.8 X weighs 135g, which means it is 80g (37%) lighter than the Fujifilm XF 8mm F3.5 WR which has a weight of 215g.
Below you can find the dimension and weight table of the Wideangle Fisheye Prime Lenses in Fujifilm X Mount for size comparison purposes.
Ultra-Wideangle Lenses in Fujifilm X Mount for Size Comparison
Lens Mounts
Both the Venus Laowa 4mm F2.8 X and the Fujifilm XF 8mm F3.5 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
Venus Laowa 4mm F2.8 X is a prime lens with fixed focal lenght of 4mm which has an effective (full-frame 35mm equivalent) focal range of
6mm when used on a APS-C / DX format camera.
On the other hand, the Fujifilm XF 8mm F3.5 WR is a prime lens with fixed focal lenght of 8mm which has an effective (full-frame 35mm equivalent) focal range of 12mm when used on a APS-C / DX format camera.