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 RF and the Samyang MF 14mm 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 MF 14mm F2.8 RF is the longer of the two lenses at 120mm. The Venus Laowa 4mm F2.8 RF with a length of 26mm, is 94mm shorter. Besides being longer, the Samyang MF 14mm F2.8 RF also has a larger diameter of 87mm compared to the Venus Laowa 4mm F2.8 RF's 61mm 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. Venus Laowa 4mm F2.8 RF weighs 135g, which means it is 675g (83%) lighter than the Samyang MF 14mm F2.8 RF which has a weight of 810g.
Below you can find the dimension and weight table of the Wideangle Fisheye Prime Lenses in Canon RF Mount for size comparison purposes.
Ultra-Wideangle Lenses in Canon RF Mount for Size Comparison
Lens Mounts
Both the Venus Laowa 4mm F2.8 RF and the Samyang MF 14mm 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 RED Komodo-X 6K, RED Komodo 6K and Canon EOS C70.
Focal Range
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.
On the other hand, the Samyang MF 14mm F2.8 RF is a prime lens with fixed focal lenght of 14mm.
