The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tokina 100mm f2.8 Macro and the Tamron 180mm f3.5 LD Macro for their suitability to various photography scenarios:
Size and Weight Comparison
The size of a lens is an important deciding factor when comparing two lenses. Tamron 180mm f3.5 LD Macro is the longer of the two lenses at 166mm. The Tokina 100mm f2.8 Macro with a length of 95mm, is 71mm shorter. Besides being longer, the Tamron 180mm f3.5 LD Macro also has a larger diameter of 85mm compared to the Tokina 100mm f2.8 Macro's 73mm diameter.
The weight of a lens is as important as its external dimensions, especially if you are planning to hand hold your camera and lens combination for longer periods. Tokina 100mm f2.8 Macro weighs 540g, which means it is 380g (41%) lighter than the Tamron 180mm f3.5 LD Macro which has a weight of 920g.
Below you can find the dimension and weight table of the Macro Prime Lenses in Nikon F (FX) Mount for size comparison purposes.
Macro Prime Lenses in Nikon F (FX) Mount for Size Comparison
Lens Mounts
Both the Tokina 100mm f2.8 Macro and the Tamron 180mm f3.5 LD Macro has the same Nikon F (FX) lens mount. Some of the latest released cameras that are compatible with the Nikon F (FX) lenses are Nikon D6, Nikon D780 and Nikon D3500.
Tokina 100mm f2.8 Macro is also available in Canon EF mount.
Tamron 180mm f3.5 LD Macro is also available in Canon EF and Sony Alpha mounts.
Focal Range
Tokina 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.
Tamron 180mm f3.5 LD Macro 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.