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 Carl Zeiss Distagon T2,8/15 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. Carl Zeiss Distagon T2,8/15 is the longer of the two lenses at 135mm. The Sony FE 14mm F1.8 GM with a length of 100mm, is 35mm shorter. Besides being longer, the Carl Zeiss Distagon T2,8/15 also has a larger diameter of 103mm 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 270g (36%) lighter than the Carl Zeiss Distagon T2,8/15 which has a weight of 730g.
Lens Mounts
The Sony FE 14mm F1.8 GM has the Sony E lens mount whereas the Carl Zeiss Distagon T2,8/15 has the Canon EF 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 Blackmagic URSA 12K LF, Z CAM E2-F6 II 6K and Z CAM E2-S6 II 6K for the Canon EF Mount.
Carl Zeiss Distagon T2,8/15 is also available in Nikon F (FX) mount.
Focal Range
Sony FE 14mm F1.8 GM 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 Carl Zeiss Distagon T2,8/15 is a prime lens with fixed focal lenght of 15mm. When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of 24mm.
