The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Brightin AF 12mm F2.8 and the Sony FE 14mm F1.8 GM 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 Brightin AF 12mm F2.8 with a length of 97mm, is 3mm shorter. Besides being longer, the Sony FE 14mm F1.8 GM also has a larger diameter of 83mm compared to the Brightin AF 12mm F2.8's 70mm 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, 7% (39g) lighter than the Brightin AF 12mm F2.8's weight of 499g.
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 Brightin AF 12mm F2.8 and the Sony FE 14mm F1.8 GM has the same Sony E lens mount. Some of the latest released cameras that are compatible with the Sony E lenses are Sony FX5, Sony A7R VI and Sony A7 V.
Focal Range
Brightin AF 12mm F2.8 is a prime lens with fixed focal lenght of 12mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
18mm.
On the other hand, the 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.
