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 Sony FE 20mm F1.8 G 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. Sony FE 20mm F1.8 G is the longer of the two lenses at 85mm. The Sigma 24mm F2 DG DN C with a length of 72mm, is 13mm shorter. Besides being longer, the Sony FE 20mm F1.8 G also has a larger diameter of 74mm compared to the Sigma 24mm F2 DG DN C's 70mm diameter.
Below you can find a scaled side-by-side image of Sigma 24mm F2 DG DN C and Sony FE 20mm F1.8 G to get a better idea of how their sizes compare in real life.
Comparison image of the Sigma 24mm F2 DG DN C and the Sony FE 20mm F1.8 G Size and Weight 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 24mm F2 DG DN C weighs 365g, which means it is 8g (2%) lighter than the Sony FE 20mm F1.8 G which has a weight of 373g.
Filter Threads
The Sigma 24mm F2 DG DN C has a filter size of 62mm whereas the Sony FE 20mm F1.8 G has a 67mm 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 67mm filters that we recommend for the Sony FE 20mm F1.8 G:
Lens Mounts
The Sigma 24mm F2 DG DN C has the Leica L lens mount whereas the Sony FE 20mm F1.8 G 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 F2 DG DN C is also available in the Sony E mount.
Focal Range
Sigma 24mm F2 DG DN C is a prime lens with fixed focal lenght of 24mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
36mm .
On the other hand, the Sony FE 20mm F1.8 G is a prime lens with fixed focal lenght of 20mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 30mm .