The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 135mm F1.8 DG HSM and the Samyang 135mm F2.0 ED UMC 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 135mm F1.8 DG HSM is the longer of the two lenses at 141mm. The Samyang 135mm F2.0 ED UMC with a length of 122mm, is 19mm shorter. Besides being longer, the Sigma 135mm F1.8 DG HSM also has a larger diameter of 91mm compared to the Samyang 135mm F2.0 ED UMC's 82mm diameter.
Below you can find a scaled side-by-side image of Sigma 135mm F1.8 DG HSM and Samyang 135mm F2.0 ED UMC to get a better idea of how their sizes compare in real life.
Comparison image of the Sigma 135mm F1.8 DG HSM and the Samyang 135mm F2.0 ED UMC Size and Weight 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 135mm F2.0 ED UMC weighs 830g, 26% (300g) lighter than the Sigma 135mm F1.8 DG HSM's weight of 1130g.
Below you can find the dimension and weight table of the Telephoto Prime Lenses in Sony E Mount for size comparison purposes.
Telephoto Sony E Mount
Filter Threads
The Sigma 135mm F1.8 DG HSM has a filter size of 82mm whereas the Samyang 135mm F2.0 ED UMC 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 82mm filters that we recommend you to consider for the Sigma 135mm F1.8 DG HSM:
And these are the 77mm filters that we recommend for the Samyang 135mm F2.0 ED UMC:
Lens Mounts
Both the Sigma 135mm F1.8 DG HSM and the Samyang 135mm F2.0 ED UMC has the same Sony E lens mount . Some of the latest released cameras that are compatible with the Sony E lenses are Sony FX5 , Sony A7R VI and Sony A7 V .
Sigma SA , Nikon F (FX) and Canon EF mounts.
Canon EF , Canon EF-M , Four Thirds , Fujifilm X , Micro Four Thirds , Nikon F (FX) , Pentax KAF , Samsung NX and Sony Alpha mounts.
Focal Range
Both lenses have the same focal range of
135mm but while Sigma 135mm F1.8 DG HSM has the fastest aperture of
F1.8 , the Samyang 135mm F2.0 ED UMC's widest aperture value is
F2 .
