The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Samyang 35mm F1.2 and the Zeiss Batis 40mm F2 CF 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. Zeiss Batis 40mm F2 CF is the longer of the two lenses at 93mm. The Samyang 35mm F1.2 with a length of 74mm, is 19mm shorter. Besides being longer, the Zeiss Batis 40mm F2 CF also has a larger diameter of 91mm compared to the Samyang 35mm F1.2's 68mm 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. Zeiss Batis 40mm F2 CF weighs 361g, 14% (59g) lighter than the Samyang 35mm F1.2's weight of 420g.
Filter Threads
The Samyang 35mm F1.2 has a filter size of 62mm whereas the Zeiss Batis 40mm F2 CF has a 67mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 62mm filters that we recommend you to consider for the Samyang 35mm F1.2:
And these are the 67mm filters that we recommend for the Zeiss Batis 40mm F2 CF:
Lens Mounts
Both the Samyang 35mm F1.2 and the Zeiss Batis 40mm F2 CF has the same Sony E lens mount. Some of the latest released cameras that are compatible with the Sony E lenses are Sony A6700, Sony FX30 and Sony ZV-E10.
Samyang 35mm F1.2 is also available in Canon EF-M , Fujifilm X and Micro Four Thirds mounts.
Focal Range
Samyang 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.
On the other hand, the Zeiss Batis 40mm F2 CF is a prime lens with fixed focal lenght of 40mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 60mm.