The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Samyang 85mm F1.8 ED UMC CS and the Sigma 85mm F1.4 DG DN 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 DN is the longer of the two lenses at 94mm. The Samyang 85mm F1.8 ED UMC CS with a length of 81mm, is 13mm shorter. Besides being longer, the Sigma 85mm F1.4 DG DN also has a larger diameter of 83mm compared to the Samyang 85mm F1.8 ED UMC CS's 68mm diameter.
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Below you can find a scaled side-by-side image of Samyang 85mm F1.8 ED UMC CS and Sigma 85mm F1.4 DG DN 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 85mm F1.8 ED UMC CS weighs 344g, which means it is 286g (45%) lighter than the Sigma 85mm F1.4 DG DN which has a weight of 630g.
Below you can find the dimension and weight table of the Telephoto Prime Lenses in Sony E Mount for size comparison purposes.
Telephoto Lenses in Sony E Mount for Size Comparison
Filter Threads
The Samyang 85mm F1.8 ED UMC CS has a filter size of 62mm whereas the Sigma 85mm F1.4 DG DN 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 62mm filters that we recommend you to consider for the Samyang 85mm F1.8 ED UMC CS:
And these are the 77mm filters that we recommend for the Sigma 85mm F1.4 DG DN :
Lens Mounts
Both the Samyang 85mm F1.8 ED UMC CS and the Sigma 85mm F1.4 DG DN has the same Sony E lens mount. Some of the latest released cameras that are compatible with the Sony E lenses are Sony A6700, Sony FX30 and Sony ZV-E10.
Samyang 85mm F1.8 ED UMC CS is also available in Canon EF-M and Fujifilm X mounts.
Focal Range
Both lenses have the same focal range of
85mm but while Samyang 85mm F1.8 ED UMC CS has the fastest aperture of
F1.8, the Sigma 85mm F1.4 DG DN 's widest aperture value is
F1.4.