The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Samyang AF 12mm f2 RF-S and the Venus Laowa 4mm F2.8 RF 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. Samyang AF 12mm f2 RF-S is the longer of the two lenses at 63mm. The Venus Laowa 4mm F2.8 RF with a length of 26mm, is 37mm shorter. Besides being longer, the Samyang AF 12mm f2 RF-S also has a larger diameter of 70mm compared to the Venus Laowa 4mm F2.8 RF's 61mm diameter.
Below you can find a scaled side-by-side image of Samyang AF 12mm f2 RF-S and Venus Laowa 4mm F2.8 RF to get a better idea of how their sizes compare in real life.
Comparison image of the Samyang AF 12mm f2 RF-S and the Venus Laowa 4mm F2.8 RF 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 RF weighs 135g, 36% (78g) lighter than the Samyang AF 12mm f2 RF-S's weight of 213g.
Below you can find the dimension and weight table of the Wideangle Prime Lenses in Canon RF Mount for size comparison purposes.
Ultra-Wideangle Lenses in Canon RF Mount for Size Comparison
Lens Mounts
Both the Samyang AF 12mm f2 RF-S and the Venus Laowa 4mm F2.8 RF has the same Canon RF lens mount . Some of the latest released cameras that are compatible with the Canon RF lenses are Canon R50 V , Canon R100 and Canon R50 .
Focal Range
Samyang AF 12mm f2 RF-S is a prime lens with fixed focal lenght of 12mm which has an effective (full-frame 35mm equivalent) focal range of
19.2mm when used on a APS-C / DX format camera.
On the other hand, the Venus Laowa 4mm F2.8 RF 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.