The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 85mm F1.4 DG HSM and the Samyang AF 85mm F1.4 EF 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 AF 85mm F1.4 EF with a length of 72mm, is 54mm shorter. Besides being longer, the Sigma 85mm F1.4 DG HSM also has a larger diameter of 95mm compared to the Samyang AF 85mm F1.4 EF's 61mm diameter.
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Below you can find a scaled side-by-side image of Sigma 85mm F1.4 DG HSM and Samyang AF 85mm F1.4 EF 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 AF 85mm F1.4 EF weighs 485g, 57% (645g) lighter than the Sigma 85mm F1.4 DG HSM's 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
Filter Threads
The Sigma 85mm F1.4 DG HSM has a filter size of 86mm whereas the Samyang AF 85mm F1.4 EF has a 77mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 86mm filters that we recommend you to consider for the Sigma 85mm F1.4 DG HSM:
And these are the 77mm filters that we recommend for the Samyang AF 85mm F1.4 EF:
Lens Mounts
Both the Sigma 85mm F1.4 DG HSM and the Samyang AF 85mm F1.4 EF 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 and the fastest aperture of
F1.4.