The type of photography that you are planning to use is an important decision factor. Here we have evaluated the 7Artisans FF 18mm f5.6 L and the Venus Laowa 4mm F2.8 L 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. 7Artisans FF 18mm f5.6 L is the longer of the two lenses at 32mm. The Venus Laowa 4mm F2.8 L with a length of 26mm, is 6mm shorter. On the other hand, there is no difference between the max diameters of these lenses, both coming at 61mm.
Below you can find a scaled side-by-side image of 7Artisans FF 18mm f5.6 L and Venus Laowa 4mm F2.8 L to get a better idea of how their sizes compare in real life.
Comparison image of the 7Artisans FF 18mm f5.6 L and the Venus Laowa 4mm F2.8 L 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 L weighs 135g, 7% (11g) lighter than the 7Artisans FF 18mm f5.6 L's weight of 146g.
Below you can find the dimension and weight table of the Wideangle Prime Lenses in Leica L Mount for size comparison purposes.
Ultra-Wideangle Leica L Mount
Lens Mounts
Both the 7Artisans FF 18mm f5.6 L and the Venus Laowa 4mm F2.8 L has the same Leica L lens mount . Some of the latest released cameras that are compatible with the Leica L lenses are Leica SL3-P , Panasonic S1 II and Panasonic S1 IIE .
Focal Range
7Artisans FF 18mm f5.6 L is a prime lens with fixed focal lenght of 18mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
27mm .
On the other hand, the Venus Laowa 4mm F2.8 L 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.
