The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 24mm F2 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 F2 DG DN C is the longer of the two lenses at 72mm. The Sigma 45mm F2.8 DG DN C with a length of 46mm, is 26mm shorter. Besides being longer, the Sigma 24mm F2 DG DN C also has a larger diameter of 70mm compared to the Sigma 45mm F2.8 DG DN C's 64mm 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, 41% (150g) lighter than the Sigma 24mm F2 DG DN C's weight of 365g.
Filter Threads
The Sigma 24mm F2 DG DN C has a filter size of 62mm 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 62mm filters that we recommend you to consider for the Sigma 24mm F2 DG DN C:
And these are the 55mm filters that we recommend for the Sigma 45mm F2.8 DG DN C:
Lens Mounts
Both the Sigma 24mm F2 DG DN C 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 ZV-E10 II, Sony A6700 and Sony FX30.
Sigma 24mm F2 DG DN C is also available in the Leica L mount.
Sigma 45mm F2.8 DG DN C is also available in Leica L mount.
Focal Range
Sigma 24mm F2 DG DN C is a prime lens with fixed focal lenght of 24mm which has an effective (full-frame 35mm equivalent) focal range of
36mm when used on a 35mm FF format camera.
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.