The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Voigtlander 20mm F3.5 SL II and the Samyang T-S 24mm f3.5 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 T-S 24mm f3.5 is the longer of the two lenses at 112mm. The Voigtlander 20mm F3.5 SL II with a length of 29mm is 83mm shorter. Besides being longer, the Samyang T-S 24mm f3.5 also has a larger diameter of 86mm compared to Voigtlander 20mm 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 20mm F3.5 SL II weighs 205g, which means it is 475g (69%) lighter than the Samyang T-S 24mm f3.5 which has a weight of 680g.
Lens Mounts
Both Voigtlander 20mm F3.5 SL II and Samyang T-S 24mm f3.5 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.
Voigtlander 20mm F3.5 SL II is also available in Canon EF and Pentax KAF mounts.
Samyang T-S 24mm f3.5 is also available in Canon EF , Pentax KAF, Sony Alpha and Sony E mounts.
Focal Range
Voigtlander 20mm F3.5 SL II is a prime lens with fixed focal lenght of 20mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides an 35mm (FF) equivalent of 30mm.
Samyang T-S 24mm f3.5 is a prime lens with fixed focal lenght of 24mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides an 35mm (FF) equivalent of 36mm.