The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Samyang 50mm F1.4 AS UMC and the Sigma 50mm F1.4 DG HSM A 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 50mm F1.4 DG HSM A is the longer of the two lenses at 100mm. The Samyang 50mm F1.4 AS UMC with a length of 75mm, is 25mm shorter. Besides being longer, the Sigma 50mm F1.4 DG HSM A also has a larger diameter of 85mm compared to the Samyang 50mm F1.4 AS UMC's 82mm 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 50mm F1.4 AS UMC weighs 535g, which means it is 280g (34%) lighter than the Sigma 50mm F1.4 DG HSM A which has a weight of 815g.
Filter Threads
Both the Samyang 50mm F1.4 AS UMC and the Sigma 50mm F1.4 DG HSM A have the same Filter thread size of 77mm.
Below are links to the 77mm filters that we recommend you to consider for these lenses:
Lens Mounts
The Samyang 50mm F1.4 AS UMC has the Sony E lens mount whereas the Sigma 50mm F1.4 DG HSM A has the Sony Alpha lens mount. Some of the latest released cameras that are compatible with these mounts are Sony FX5, Sony A7R VI and Sony A7 V for the Sony E Mount and Sony A99 II, Sony A68 and Sony A77 II for the Sony Alpha Mount.
Samyang 50mm F1.4 AS UMC is also available in the Canon EF , Nikon F (FX), Pentax KAF and Sony Alpha mounts.
Sigma 50mm F1.4 DG HSM A is also available in Canon EF , Sigma SA, Nikon F (FX) and Leica L mounts.
Focal Range
Both lenses have the same focal range of
50mm and the fastest aperture of
F1.4.
