The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Samyang Premium MF 14mm F2.4 and the Sigma 10-20mm F3.5 EX DC HSM 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 Premium MF 14mm F2.4 is the longer of the two lenses at 109mm. The Sigma 10-20mm F3.5 EX DC HSM with a length of 88mm, is 21mm shorter. Besides being longer, the Samyang Premium MF 14mm F2.4 also has a larger diameter of 95mm compared to the Sigma 10-20mm F3.5 EX DC HSM's 87mm 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 10-20mm F3.5 EX DC HSM weighs 520g, 34% (271g) lighter than the Samyang Premium MF 14mm F2.4's weight of 791g.
Lens Mounts
Both the Samyang Premium MF 14mm F2.4 and the Sigma 10-20mm F3.5 EX DC HSM has the same Canon EF lens mount. Some of the latest released cameras that are compatible with the Canon EF lenses are Blackmagic URSA 12K LF, Z CAM E2-F6 II 6K and Z CAM E2-S6 II 6K.
Sigma 10-20mm F3.5 EX DC HSM is also available in Pentax KAF3 , Sony Alpha, Sigma SA and Nikon F (DX) mounts.
Focal Range
Samyang Premium MF 14mm F2.4 is a prime lens with fixed focal lenght of 14mm. When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of
22.4mm.
On the other hand, the Sigma 10-20mm F3.5 EX DC HSM has a focal range of 10-20mm and 2.0X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 16-32mm when used on a APS-C / DX format camera.