The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Samyang AF 14mm F2.8 and the Sigma 16mm F1.4 DC DN E 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 AF 14mm F2.8 is the longer of the two lenses at 98mm. The Sigma 16mm F1.4 DC DN E with a length of 92mm, is 6mm shorter. Besides being longer, the Samyang AF 14mm F2.8 also has a larger diameter of 86mm compared to the Sigma 16mm F1.4 DC DN E's 72mm 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. Sigma 16mm F1.4 DC DN E weighs 405g, 19% (100g) lighter than the Samyang AF 14mm F2.8's weight of 505g.
Lens Mounts
Both the Samyang AF 14mm F2.8 and the 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 A9 III, Sony A7C Mark II and Sony A7CR.
Focal Range
Samyang AF 14mm F2.8 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 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.