The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Thypoch 35mm f2 ASPH 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 Thypoch 35mm f2 ASPH with a length of 27mm, is 19mm shorter. Besides being longer, the Sigma 45mm F2.8 DG DN C also has a larger diameter of 64mm compared to the Thypoch 35mm f2 ASPH's 40mm 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. Thypoch 35mm f2 ASPH weighs 199g, which means it is 16g (7%) lighter than the Sigma 45mm F2.8 DG DN C which has a weight of 215g.
Filter Threads
The Thypoch 35mm f2 ASPH has a filter size of 39mm 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 39mm filters that we recommend you to consider for the Thypoch 35mm f2 ASPH:
And these are the 55mm filters that we recommend for the Sigma 45mm F2.8 DG DN C:
Lens Mounts
The Thypoch 35mm f2 ASPH has the Leica M lens mount whereas the Sigma 45mm F2.8 DG DN C has the Leica L lens mount. Some of the latest released cameras that are compatible with these mounts are Leica SL3-P, Panasonic S1 II and Panasonic S1 IIE for the Leica M Mount and Leica SL3-P, Panasonic S1 II and Panasonic S1 IIE for the Leica L Mount.
Sigma 45mm F2.8 DG DN C is also available in Sony E mount.
Focal Range
Thypoch 35mm f2 ASPH 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.
