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 90mm F2.8 DG DN C 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 100mm F2.8 Macro is the longer of the two lenses at 123mm. The Sigma 90mm F2.8 DG DN C with a length of 60mm, is 63mm shorter. Besides being longer, the Samyang 100mm F2.8 Macro also has a larger diameter of 73mm compared to the Sigma 90mm F2.8 DG DN C's 64mm diameter.
Samyang 100mm F2.8 Macro vs Sigma 90mm F2.8 DG DN C Lenses Size Comparison
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. Sigma 90mm F2.8 DG DN C weighs 295g, 59% (425g) lighter than the Samyang 100mm F2.8 Macro's weight of 720g.
Filter Threads
The Samyang 100mm F2.8 Macro has a filter size of 67mm whereas the Sigma 90mm F2.8 DG DN C has a 55mm 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 55mm filters that we recommend for the Sigma 90mm F2.8 DG DN C:
Lens Mounts
The Samyang 100mm F2.8 Macro has the Sony Alpha lens mount whereas the Sigma 90mm F2.8 DG DN C has the Leica L lens mount. Some of the latest released cameras that are compatible with these mounts are , and for the Sony Alpha Mount and Leica SL3-P, Panasonic S1 II and Panasonic S1 IIE for the Leica L Mount.
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 90mm F2.8 DG DN C is also available in Sony E mount.
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 90mm F2.8 DG DN C is a prime lens with fixed focal lenght of 90mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 135mm.
