The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 16mm F1.4 DC DN E and the Zeiss Batis 18mm F2.8 for their suitability to various photography scenarios:
Size and Weight Comparison
Size of a lens is an important deciding factor when comparing two lenses.Sigma 16mm F1.4 DC DN E is the longer of the two lenses at 92mm. The Zeiss Batis 18mm F2.8 with a length of 80mm is 12mm shorter. On the other hand, the Zeiss Batis 18mm F2.8 has a larger diameter of 78mm compared to Sigma 16mm F1.4 DC DN E's 72mm diameter.
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. Zeiss Batis 18mm F2.8 weighs 330g, 18% (75g) lighter than the Sigma 16mm F1.4 DC DN E's weight of 405g.
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
Both Sigma 16mm F1.4 DC DN E and Zeiss Batis 18mm F2.8 has the same Sony E lens mount. Some of the latest released cameras that are compatible with the Sony E lenses are Sony FX30, Sony ZV-E10 and Sony A6600.
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. Zeiss Batis 18mm F2.8 is a prime lens with fixed focal lenght of 18mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides an 35mm (FF) equivalent of 27mm.