The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 24mm F3.5 DG DN C 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 24mm F3.5 DG DN C is the longer of the two lenses at 49mm. The Sigma 45mm F2.8 DG DN C with a length of 46mm, is 3mm shorter. On the other hand, there is no difference between the max diameters of these lenses, both coming at 64mm.
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, 4% (10g) lighter than the Sigma 24mm F3.5 DG DN C's weight of 225g.
Filter Threads
Both the Sigma 24mm F3.5 DG DN C and the Sigma 45mm F2.8 DG DN C have the same Filter thread size of 55mm.
Below are links to the 55mm filters that we recommend you to consider for these lenses:
Lens Mounts
The Sigma 24mm F3.5 DG DN C has the Leica L lens mount whereas the Sigma 45mm F2.8 DG DN C has the Sony E 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 L Mount and Sony FX5, Sony A7R VI and Sony A7 V for the Sony E Mount.
Sigma 24mm F3.5 DG DN C is also available in the Sony E mount.
Sigma 45mm F2.8 DG DN C is also available in Leica L mount.
Focal Range
Sigma 24mm F3.5 DG DN C is a prime lens with fixed focal lenght of 24mm.
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.
