The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sony FE 14mm F1.8 GM and the Samyang 14mm F2.8 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. Sony FE 14mm F1.8 GM is the longer of the two lenses at 100mm. The Samyang 14mm F2.8 with a length of 96mm, is 4mm shorter. On the other hand, the Samyang 14mm F2.8 has a larger diameter of 87mm compared to the Sony FE 14mm F1.8 GM's 83mm 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. Sony FE 14mm F1.8 GM weighs 460g, which means it is 92g (16%) lighter than the Samyang 14mm F2.8 which has a weight of 552g.
Lens Mounts
The Sony FE 14mm F1.8 GM has the Sony E lens mount whereas the Samyang 14mm F2.8 has the Sony Alpha lens mount. Some of the latest released cameras that are compatible with these mounts are Sony FX5, Sony A7R VI and Sony A7 V for the Sony E Mount and Sony A99 II, Sony A68 and Sony A77 II for the Sony Alpha Mount.
Samyang 14mm F2.8 is also available in Canon EF , Nikon F (FX), Four Thirds, Pentax KAF, Sony E and Samsung NX mounts.
Focal Range
Both lenses have the same focal range of
14mm but while Sony FE 14mm F1.8 GM has the fastest aperture of
F1.8, the Samyang 14mm F2.8's widest aperture value is
F2.8.