The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Samyang MF 85mm F1.4 Mk2 and the Voigtlander 90mm F3.5 SL II for their suitability to various photography scenarios:
Size and Weight Comparison
Size of a lens is an important deciding factor when comparing two lenses.Samyang MF 85mm F1.4 Mk2 is the longer of the two lenses at 75mm. The Voigtlander 90mm F3.5 SL II with a length of 52mm is 23mm shorter. Besides being longer, the Samyang MF 85mm F1.4 Mk2 also has a larger diameter of 78mm compared to Voigtlander 90mm F3.5 SL II's 63mm diameter.
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. Voigtlander 90mm F3.5 SL II weighs 320g, 41% (228g) lighter than the Samyang MF 85mm F1.4 Mk2's weight of 548g.
Below you can find the dimension and weight table of the 'Telephoto Prime Lenses in Nikon F (FX) Mount for size comparison purposes.
Telephoto Prime Lenses in Nikon F (FX) Mount for Size Comparison
Lens Mounts
Both Samyang MF 85mm F1.4 Mk2 and Voigtlander 90mm F3.5 SL II 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.
Samyang MF 85mm F1.4 Mk2 is also available in Canon EF , Canon EF-M, Fujifilm X, Micro Four Thirds and Sony E mounts.
Voigtlander 90mm F3.5 SL II is also available in Canon EF and Pentax KAF mounts.
Focal Range
Samyang MF 85mm F1.4 Mk2 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 an 35mm (FF) equivalent of 127.5mm.
Voigtlander 90mm F3.5 SL II 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 an 35mm (FF) equivalent of 135mm.