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 Venus 9mm F2.8 Zero-D 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. Venus 9mm F2.8 Zero-D is the longer of the two lenses at 53mm. The Venus Laowa 4mm F2.8 X with a length of 26mm, is 27mm shorter. On the other hand, the Venus Laowa 4mm F2.8 X has a larger diameter of 61mm compared to the Venus 9mm F2.8 Zero-D's 60mm diameter.
Below you can find a scaled side-by-side image of Venus Laowa 4mm F2.8 X and Venus 9mm F2.8 Zero-D 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 Venus 9mm F2.8 Zero-D 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 Venus 9mm F2.8 Zero-D 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 Venus 9mm F2.8 Zero-D 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 .
Venus 9mm F2.8 Zero-D is also available in Canon EF-M and Sony E mounts.
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 Venus 9mm F2.8 Zero-D is a prime lens with fixed focal lenght of 9mm which has an effective (full-frame 35mm equivalent) focal range of 13.5mm when used on a APS-C / DX format camera.