The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Kamlan 28mm F1.4 and the Zeiss Batis 25mm F2 for their suitability to various photography scenarios:
Size and Weight Comparison
Size of a lens is an important deciding factor when comparing two lenses.Zeiss Batis 25mm F2 is the longer of the two lenses at 78mm. The Kamlan 28mm F1.4 with a length of 65mm is 13mm shorter. Besides being longer, the Zeiss Batis 25mm F2 also has a larger diameter of 92mm compared to Kamlan 28mm F1.4's 55mm 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 25mm F2 weighs 335g, 12% (49g) lighter than the Kamlan 28mm F1.4's weight of 384g.
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 Kamlan 28mm F1.4 and Zeiss Batis 25mm F2 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.
Kamlan 28mm F1.4 is also available in Canon EF-M , Fujifilm X and Micro Four Thirds mounts.
Focal Range
Kamlan 28mm F1.4 is a prime lens with fixed focal lenght of 28mm which has an effective (full-frame 35mm equivalent) focal range of 42mm when used on a APS-C / DX format camera. Zeiss Batis 25mm F2 is a prime lens with fixed focal lenght of 25mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides an 35mm (FF) equivalent of 37.5mm.