The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 14mm F1.8 DG HSM and the Rokinon 14mm f2.8 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 14mm F1.8 DG HSM is the longer of the two lenses at 126mm. The Rokinon 14mm f2.8 with a length of 96mm, is 30mm shorter. Besides being longer, the Sigma 14mm F1.8 DG HSM also has a larger diameter of 95mm compared to the Rokinon 14mm f2.8'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. Rokinon 14mm f2.8 weighs 552g, 52% (618g) lighter than the Sigma 14mm F1.8 DG HSM's weight of 1170g.
Lens Mounts
The Sigma 14mm F1.8 DG HSM has the Nikon F (FX) lens mount whereas the Rokinon 14mm f2.8 has the Samsung NX lens mount. Some of the latest released cameras that are compatible with these mounts are Nikon D6, Nikon D780 and Nikon D3500 for the Nikon F (FX) Mount and Samsung NX500, Samsung NX1 and Samsung NX3000 for the Samsung NX Mount.
Sigma 14mm F1.8 DG HSM is also available in the Sigma SA and Canon EF mounts.
Rokinon 14mm f2.8 is also available in Canon EF , Nikon F (FX), Four Thirds, Pentax KAF and Sony Alpha mounts.
Focal Range
Both lenses have the same focal range of
14mm but while Sigma 14mm F1.8 DG HSM has the fastest aperture of
F1.8, the Rokinon 14mm f2.8's widest aperture value is
F2.8.
