The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Kamlan 55mm F1.2 and the 7artisans 35mm F1.2 for their suitability to various photography scenarios:
Size and Weight Comparison
The 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. 7artisans 35mm F1.2 weighs 150g, 78% (550g) lighter than the Kamlan 55mm F1.2's weight of 700g.
Below you can find the dimension and weight table of the Standard Prime Lenses in Sony E Mount for size comparison purposes.
Standard Prime Lenses in Sony E Mount for Size Comparison
Both the Kamlan 55mm F1.2 and the 7artisans 35mm F1.2 has the same Sony E lens mount. Some of the latest released cameras that are compatible with the Sony E lenses are Sony ZV-E1, Sony A7R V and Sony FX30.
7artisans 35mm F1.2 is also available in Canon EF-M and Fujifilm X mounts.
Kamlan 55mm F1.2 is a prime lens with fixed focal lenght of 50mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 75mm.
7artisans 35mm F1.2 is a prime lens with fixed focal lenght of 35mm which has an effective (full-frame 35mm equivalent) focal range of 52.5mm when used on a APS-C / DX format camera.