The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Samyang Premium MF 85mm F1.2 and the Sigma 85mm F1.4 DG 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. Sigma 85mm F1.4 DG HSM is the longer of the two lenses at 126mm. The Samyang Premium MF 85mm F1.2 with a length of 98mm, is 28mm shorter. Besides being longer, the Sigma 85mm F1.4 DG HSM also has a larger diameter of 95mm compared to the Samyang Premium MF 85mm F1.2's 93mm diameter.
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Below you can find a scaled side-by-side image of Samyang Premium MF 85mm F1.2 and Sigma 85mm F1.4 DG HSM to get a better idea of how their sizes compare in real life.
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 Premium MF 85mm F1.2 weighs 1050g, which means it is 80g (7%) lighter than the Sigma 85mm F1.4 DG HSM which has a weight of 1130g.
Below you can find the dimension and weight table of the Telephoto Prime Lenses in Canon EF Mount for size comparison purposes.
Telephoto Lenses in Canon EF Mount for Size Comparison
Lens Mounts
Both the Samyang Premium MF 85mm F1.2 and the Sigma 85mm F1.4 DG HSM has the same Canon EF lens mount. Some of the latest released cameras that are compatible with the Canon EF lenses are Canon 1D X III, Canon 6D MII and Canon 5D MIV.
Sigma 85mm F1.4 DG HSM is also available in Sigma SA and Nikon F (FX) mounts.
Focal Range
Both lenses have the same focal range of
85mm but while Samyang Premium MF 85mm F1.2 has the fastest aperture of
F1.2, the Sigma 85mm F1.4 DG HSM's widest aperture value is
F1.4.