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 Sigma 16mm F1.4 DC DN E for their suitability to various photography scenarios:
Size and Weight Comparison
Size of a lens is an important deciding factor when comparing two lenses.Sony FE 14mm F1.8 GM is the longer of the two lenses at 100mm. The Sigma 16mm F1.4 DC DN E with a length of 92mm is 8mm shorter. Besides being longer, the Sony FE 14mm F1.8 GM also has a larger diameter of 83mm compared to Sigma 16mm F1.4 DC DN E's 72mm diameter.
Below you can find the scaled side by side image of Sony FE 14mm F1.8 GM and Sigma 16mm F1.4 DC DN E to get a better idea of how their size compare in real life.
Comparison image of Sony FE 14mm F1.8 GM and Sigma 16mm F1.4 DC DN E Size and Weight Weight of a lens is as important as its external dimensions, especially if you are planning to hand hold your camera and lens combination for longer periods. Sigma 16mm F1.4 DC DN E weighs 405g, 11% (55g) lighter than the Sony FE 14mm F1.8 GM's weight of 460g.
Below you can find the dimension and weight table of the 'Wideangle Prime Lenses in Sony E Mount for size comparison purposes.
Wideangle Prime Lenses in Sony E Mount for Size Comparison
Lens Mounts
Both Sony FE 14mm F1.8 GM and Sigma 16mm F1.4 DC DN E has the same Sony E lens mount. Some of the latest released cameras that are compatible with the Sony E lenses are Sony A7R V, Sony FX30 and Sony A7 IV.
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 an 35mm (FF) equivalent of 21mm.
Sigma 16mm F1.4 DC DN E is a prime lens with fixed focal lenght of 16mm which has an effective (full-frame 35mm equivalent) focal range of 24mm when used on a APS-C / DX format camera.