The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Samyang 21mm F1.4 ED AS UMC CS and the Sigma 24mm F3.5 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. Samyang 21mm F1.4 ED AS UMC CS is the longer of the two lenses at 68mm. The Sigma 24mm F3.5 DG DN C with a length of 49mm, is 19mm shorter. On the other hand, there is no difference between the max diameters of these lenses, both coming at 64mm.
Below you can find a scaled side-by-side image of Samyang 21mm F1.4 ED AS UMC CS and Sigma 24mm F3.5 DG DN C to get a better idea of how their sizes compare in real life.
Comparison image of the Samyang 21mm F1.4 ED AS UMC CS and the Sigma 24mm F3.5 DG DN C 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 F3.5 DG DN C weighs 225g, 18% (50g) lighter than the Samyang 21mm F1.4 ED AS UMC CS 's weight of 275g.
Below you can find the dimension and weight table of the Wideangle Prime Lenses in Sony E Mount for size comparison purposes.
Wideangle Sony E Mount
Filter Threads
The Samyang 21mm F1.4 ED AS UMC CS has a filter size of 58mm whereas the Sigma 24mm F3.5 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 58mm filters that we recommend you to consider for the Samyang 21mm F1.4 ED AS UMC CS :
And these are the 55mm filters that we recommend for the Sigma 24mm F3.5 DG DN C:
Lens Mounts
Both the Samyang 21mm F1.4 ED AS UMC CS and the Sigma 24mm F3.5 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 .
Canon EF-M , Fujifilm X and Micro Four Thirds mounts.
Leica L mount.
Focal Range
Samyang 21mm F1.4 ED AS UMC CS is a prime lens with fixed focal lenght of 21mm which has an effective (full-frame 35mm equivalent) focal range of
31.5mm when used on a APS-C / DX format camera.
On the other hand, the Sigma 24mm F3.5 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 .
