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 Samyang 85mm F1.4 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 85mm F1.8 ED UMC CS is the longer of the two lenses at 81mm. The Samyang 85mm F1.4 with a length of 75mm, is 6mm shorter. On the other hand, the Samyang 85mm F1.4 has a larger diameter of 78mm compared to the Samyang 85mm F1.8 ED UMC CS's 68mm 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. Samyang 85mm F1.8 ED UMC CS weighs 344g, which means it is 195g (36%) lighter than the Samyang 85mm F1.4 which has a weight of 539g.
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 Samyang 85mm F1.4 has a 72mm 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 72mm filters that we recommend for the Samyang 85mm F1.4:
Lens Mounts
Both the Samyang 85mm F1.8 ED UMC CS and the Samyang 85mm F1.4 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.
Samyang 85mm F1.4 is also available in Canon EF , Nikon F (FX), Four Thirds, Pentax KAF, Sony Alpha and Samsung NX 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 Samyang 85mm F1.4's widest aperture value is
F1.4.