The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sony FE 85mm F1.4 GM and the Tokina Firin 100mm F2.8 FE 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. Tokina Firin 100mm F2.8 FE Macro is the longer of the two lenses at 123mm. The Sony FE 85mm F1.4 GM with a length of 108mm, is 15mm shorter. On the other hand, the Sony FE 85mm F1.4 GM has a larger diameter of 90mm compared to the Tokina Firin 100mm F2.8 FE Macro's 74mm diameter.
tt
Below you can find a scaled side-by-side image of Sony FE 85mm F1.4 GM and Tokina Firin 100mm F2.8 FE Macro to get a better idea of how their sizes compare in real life.
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 Firin 100mm F2.8 FE Macro weighs 570g, 30% (250g) lighter than the Sony FE 85mm F1.4 GM's weight of 820g.
Filter Threads
The Sony FE 85mm F1.4 GM has a filter size of 77mm whereas the Tokina Firin 100mm F2.8 FE 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 77mm filters that we recommend you to consider for the Sony FE 85mm F1.4 GM:
And these are the 55mm filters that we recommend for the Tokina Firin 100mm F2.8 FE Macro:
Lens Mounts
Both the Sony FE 85mm F1.4 GM and the Tokina Firin 100mm F2.8 FE Macro has the same Sony E lens mount. Some of the latest released cameras that are compatible with the Sony E lenses are Sony A9 III, Sony A7C Mark II and Sony A7CR.
Focal Range
Sony FE 85mm F1.4 GM is a prime lens with fixed focal lenght of 85mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
127.5mm.
On the other hand, the Tokina Firin 100mm F2.8 FE 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.