The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 45mm F2.8 DG DN C and the 7artisans 35mm F2 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. Sigma 45mm F2.8 DG DN C is the longer of the two lenses at 46mm. The 7artisans 35mm F2 with a length of 41mm, is 5mm shorter. Besides being longer, the Sigma 45mm F2.8 DG DN C also has a larger diameter of 64mm compared to the 7artisans 35mm F2's 50mm 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. Sigma 45mm F2.8 DG DN C weighs 215g, which means it is 105g (32%) lighter than the 7artisans 35mm F2 which has a weight of 320g.
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 Sigma 45mm F2.8 DG DN C has a filter size of 55mm whereas the 7artisans 35mm F2 has a 43mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 55mm filters that we recommend you to consider for the Sigma 45mm F2.8 DG DN C:
And these are the 43mm filters that we recommend for the 7artisans 35mm F2:
Lens Mounts
Both the Sigma 45mm F2.8 DG DN C and the 7artisans 35mm F2 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.
Sigma 45mm F2.8 DG DN C is also available in the Leica L mount.
7artisans 35mm F2 is also available in Canon EF-M and Fujifilm X mounts.
Focal Range
Sigma 45mm F2.8 DG DN C is a prime lens with fixed focal lenght of 45mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
67.5mm.
On the other hand, the 7artisans 35mm F2 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.
