The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Samyang MF 14mm F2.8 Mk2 and the Samyang AF 18mm F2.8 FE 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 Mk2 is the longer of the two lenses at 96mm. The Samyang AF 18mm F2.8 FE with a length of 61mm, is 35mm shorter. Besides being longer, the Samyang MF 14mm F2.8 Mk2 also has a larger diameter of 87mm compared to the Samyang AF 18mm F2.8 FE's 64mm 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. Samyang AF 18mm F2.8 FE weighs 145g, 77% (504g) lighter than the Samyang MF 14mm F2.8 Mk2's weight of 649g.
Below you can find the dimension and weight table of the Wideangle Prime Lenses in Sony E Mount for size comparison purposes.
Ultra-Wideangle Lenses in Sony E Mount for Size Comparison
Lens Mounts
Both the Samyang MF 14mm F2.8 Mk2 and the Samyang AF 18mm F2.8 FE has the same Sony E lens mount. Some of the latest released cameras that are compatible with the Sony E lenses are Sony A9 III, Sony A7C Mark II and Sony A7CR.
Samyang MF 14mm F2.8 Mk2 is also available in Canon EF , Canon EF-M, Fujifilm X, Micro Four Thirds and Nikon F (FX) mounts.
Focal Range
Samyang MF 14mm F2.8 Mk2 is a prime lens with fixed focal lenght of 14mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
21mm.
On the other hand, the Samyang AF 18mm F2.8 FE 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.