The type of photography that you are planning to use is an important decision factor. Here we have evaluated the 7Artisans 35mm F1.8 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. 7Artisans 35mm F1.8 is the longer of the two lenses at 94mm. The Zeiss Batis 40mm F2 CF with a length of 93mm, is 1mm shorter. On the other hand, the Zeiss Batis 40mm F2 CF has a larger diameter of 91mm compared to the 7Artisans 35mm F1.8'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. Zeiss Batis 40mm F2 CF weighs 361g, 15% (65g) lighter than the 7Artisans 35mm F1.8's weight of 426g.
Below you can find the dimension and weight table of the Standard Prime Lenses in Sony E Mount for size comparison purposes.
Standard Lenses in Sony E Mount for Size Comparison
Filter Threads
The 7Artisans 35mm F1.8 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 7Artisans 35mm F1.8:
And these are the 67mm filters that we recommend for the Zeiss Batis 40mm F2 CF:
Lens Mounts
Both the 7Artisans 35mm F1.8 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 FX5, Sony A7R VI and Sony A7 V.
7Artisans 35mm F1.8 is also available in the Nikon Z and Leica L mounts.
Focal Range
7Artisans 35mm F1.8 is a prime lens with fixed focal lenght of 35mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
52.5mm.
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.
