The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tokina atx-m 85mm F1.8 FE and the Venus 105mm F2 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. Venus 105mm F2 is the longer of the two lenses at 99mm. The Tokina atx-m 85mm F1.8 FE with a length of 80mm, is 19mm shorter. On the other hand, the Tokina atx-m 85mm F1.8 FE has a larger diameter of 93mm compared to the Venus 105mm F2's 76mm 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-m 85mm F1.8 FE weighs 645g, which means it is 100g (13%) lighter than the Venus 105mm F2 which has a weight of 745g.
Below you can find the dimension and weight table of the Telephoto Prime Lenses in Sony E Mount for size comparison purposes.
Telephoto Lenses in Sony E Mount for Size Comparison
Filter Threads
The Tokina atx-m 85mm F1.8 FE has a filter size of 72mm whereas the Venus 105mm F2 has a 67mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 72mm filters that we recommend you to consider for the Tokina atx-m 85mm F1.8 FE:
And these are the 67mm filters that we recommend for the Venus 105mm F2:
Lens Mounts
Both the Tokina atx-m 85mm F1.8 FE and the Venus 105mm F2 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.
Venus 105mm F2 is also available in Canon EF , Nikon F (FX), Pentax KAF2 and Sony Alpha mounts.
Focal Range
Tokina atx-m 85mm F1.8 FE 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 Venus 105mm F2 is a prime lens with fixed focal lenght of 105mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 157.5mm.