The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Brightin Star 35mm f1.4 and the Sigma 45mm F2.8 DG DN C 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 Brightin Star 35mm f1.4 with a length of 42mm, is 4mm shorter. Besides being longer, the Sigma 45mm F2.8 DG DN C also has a larger diameter of 64mm compared to the Brightin Star 35mm f1.4's 55mm 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, 1% (3g) lighter than the Brightin Star 35mm f1.4's weight of 218g.
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 Brightin Star 35mm f1.4 has a filter size of 43mm whereas the Sigma 45mm F2.8 DG DN C has a 55mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 43mm filters that we recommend you to consider for the Brightin Star 35mm f1.4:
And these are the 55mm filters that we recommend for the Sigma 45mm F2.8 DG DN C:
Lens Mounts
Both the Brightin Star 35mm f1.4 and the Sigma 45mm F2.8 DG DN C 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.
Brightin Star 35mm f1.4 is also available in the Canon RF , Nikon Z and Leica L mounts.
Sigma 45mm F2.8 DG DN C is also available in Leica L mount.
Focal Range
Brightin Star 35mm f1.4 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 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.
