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 Tokina atx-i 100mm F2.8 FF 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 Tokina atx-i 100mm F2.8 FF Macro with a length of 95mm, is 31mm shorter. Besides being longer, the Tamron 90mm F2.8 Di III also has a larger diameter of 79mm compared to the Tokina atx-i 100mm F2.8 FF 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. Tokina atx-i 100mm F2.8 FF Macro weighs 530g, 15% (100g) lighter than the Tamron 90mm F2.8 Di III's weight of 630g.
Filter Threads
The Tamron 90mm F2.8 Di III has a filter size of 67mm whereas the Tokina atx-i 100mm F2.8 FF Macro 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 Tamron 90mm F2.8 Di III:
And these are the 55mm filters that we recommend for the Tokina atx-i 100mm F2.8 FF Macro:
Lens Mounts
The Tamron 90mm F2.8 Di III has the Nikon Z lens mount whereas the Tokina atx-i 100mm F2.8 FF Macro has the Nikon F (FX) lens mount. Some of the latest released cameras that are compatible with these mounts are Nikon ZR, Nikon Z5 II and RED Komodo-X 6K Z for the Nikon Z Mount and Nikon D6, Nikon D780 and Nikon D3500 for the Nikon F (FX) Mount.
Tamron 90mm F2.8 Di III is also available in the Sony E mount.
Tokina atx-i 100mm F2.8 FF Macro is also available in Canon EF , Canon EF and Nikon F (FX) 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 Tokina atx-i 100mm F2.8 FF 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.