The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 24mm F1.4 DG DN A and the Samyang AF 24mm F1.8 FE 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 F1.4 DG DN A is the longer of the two lenses at 96mm. The Samyang AF 24mm F1.8 FE with a length of 72mm, is 24mm shorter. Besides being longer, the Sigma 24mm F1.4 DG DN A also has a larger diameter of 76mm compared to the Samyang AF 24mm F1.8 FE's 65mm 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. Samyang AF 24mm F1.8 FE weighs 230g, 55% (290g) lighter than the Sigma 24mm F1.4 DG DN A's weight of 520g.
Below you can find the dimension and weight table of the Wideangle Prime Lenses in Sony E Mount for size comparison purposes.
Wideangle Lenses in Sony E Mount for Size Comparison
Filter Threads
The Sigma 24mm F1.4 DG DN A has a filter size of 72mm whereas the Samyang AF 24mm F1.8 FE has a 58mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 72mm filters that we recommend you to consider for the Sigma 24mm F1.4 DG DN A:
And these are the 58mm filters that we recommend for the Samyang AF 24mm F1.8 FE:
Lens Mounts
Both the Sigma 24mm F1.4 DG DN A and the Samyang AF 24mm F1.8 FE has the same Sony E lens mount. Some of the latest released cameras that are compatible with the Sony E lenses are Sony A9 III, Sony A7C Mark II and Sony A7CR.
Sigma 24mm F1.4 DG DN A is also available in Leica L mount.
Focal Range
Both lenses have the same focal range of
24mm but while Sigma 24mm F1.4 DG DN A has the fastest aperture of
F1.4, the Samyang AF 24mm F1.8 FE's widest aperture value is
F1.8.