The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tamron 90mm F2.8 Di III and the Samyang 100mm F2.8 Macro 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. Tamron 90mm F2.8 Di III is the longer of the two lenses at 126mm. The Samyang 100mm F2.8 Macro with a length of 123mm, is 3mm shorter. Besides being longer, the Tamron 90mm F2.8 Di III also has a larger diameter of 79mm compared to the Samyang 100mm F2.8 Macro's 73mm diameter.
Below you can find a scaled side-by-side image of Tamron 90mm F2.8 Di III and Samyang 100mm F2.8 Macro to get a better idea of how their sizes compare in real life.
Comparison image of the Tamron 90mm F2.8 Di III and the Samyang 100mm F2.8 Macro 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. Tamron 90mm F2.8 Di III weighs 630g, which means it is 90g (12%) lighter than the Samyang 100mm F2.8 Macro which has a weight of 720g.
Filter Threads
Both the Tamron 90mm F2.8 Di III and the Samyang 100mm F2.8 Macro have the same Filter thread size of 67mm .
Below are links to the 67mm filters that we recommend you to consider for these lenses:
Lens Mounts
The Tamron 90mm F2.8 Di III has the Sony E lens mount whereas the Samyang 100mm F2.8 Macro has the Canon EF lens mount . Some of the latest released cameras that are compatible with these mounts are Sony FX5 , Sony A7R VI and Sony A7 V for the Sony E Mount and Blackmagic URSA 12K LF , Z CAM E2-F6 II 6K and Z CAM E2-S6 II 6K for the Canon EF Mount.
Fujifilm X , Micro Four Thirds , Nikon F (FX) , Pentax KAF , Samsung NX , Sony Alpha and Sony E mounts.
Focal Range
Tamron 90mm F2.8 Di III 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 .
On the other hand, the 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 1.6x crop, it provides a 35mm (FF) equivalent of 160mm .
