The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Viltrox 85mm F2.0 and the Sigma 105mm F2.8 DG DN 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. Sigma 105mm F2.8 DG DN Macro is the longer of the two lenses at 134mm. The Viltrox 85mm F2.0 with a length of 76mm, is 58mm shorter. Besides being longer, the Sigma 105mm F2.8 DG DN Macro also has a larger diameter of 74mm compared to the Viltrox 85mm F2.0's 69mm 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. Viltrox 85mm F2.0 weighs 340g, which means it is 375g (52%) lighter than the Sigma 105mm F2.8 DG DN Macro which has a weight of 715g.
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 Viltrox 85mm F2.0 has a filter size of 58mm whereas the Sigma 105mm F2.8 DG DN Macro has a 62mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 58mm filters that we recommend you to consider for the Viltrox 85mm F2.0:
And these are the 62mm filters that we recommend for the Sigma 105mm F2.8 DG DN Macro:
Lens Mounts
Both the Viltrox 85mm F2.0 and the Sigma 105mm F2.8 DG DN Macro has the same Sony E lens mount. Some of the latest released cameras that are compatible with the Sony E lenses are Sony FX5, Sony A7R VI and Sony A7 V.
Viltrox 85mm F2.0 is also available in the Nikon Z mount.
Sigma 105mm F2.8 DG DN Macro is also available in Leica L mount.
Focal Range
Viltrox 85mm F2.0 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 Sigma 105mm F2.8 DG DN Macro 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.
