The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Samyang 100mm F2.8 Macro and the Sigma APO 180mm F2.8 EX DG OS 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 APO 180mm F2.8 EX DG OS HSM is the longer of the two lenses at 204mm. The Samyang 100mm F2.8 Macro with a length of 123mm, is 81mm shorter. Besides being longer, the Sigma APO 180mm F2.8 EX DG OS HSM also has a larger diameter of 95mm compared to the Samyang 100mm F2.8 Macro's 73mm 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 100mm F2.8 Macro weighs 720g, which means it is 920g (56%) lighter than the Sigma APO 180mm F2.8 EX DG OS HSM which has a weight of 1640g.
Below you can find the dimension and weight table of the Telephoto Macro Lenses in Sony Alpha Mount for size comparison purposes.
Macro Lenses in Sony Alpha Mount for Size Comparison
Filter Threads
The Samyang 100mm F2.8 Macro has a filter size of 67mm whereas the Sigma APO 180mm F2.8 EX DG OS HSM has a 86mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 67mm filters that we recommend you to consider for the Samyang 100mm F2.8 Macro:
And these are the 86mm filters that we recommend for the Sigma APO 180mm F2.8 EX DG OS HSM:
Lens Mounts
Both the Samyang 100mm F2.8 Macro and the Sigma APO 180mm F2.8 EX DG OS HSM has the same Sony Alpha lens mount. Some of the latest released cameras that are compatible with the Sony Alpha lenses are , and .
Samyang 100mm F2.8 Macro is also available in the Canon EF , Fujifilm X, Micro Four Thirds, Nikon F (FX), Pentax KAF, Samsung NX and Sony E mounts.
Sigma APO 180mm F2.8 EX DG OS HSM is also available in Canon EF , Nikon F (FX) and Sigma SA mounts.
Focal Range
Samyang 100mm F2.8 Macro is a prime lens with fixed focal lenght of 100mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
150mm.
On the other hand, the Sigma APO 180mm F2.8 EX DG OS HSM is a prime lens with fixed focal lenght of 180mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 270mm.
