The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Nikon Micro-105mm f2.8G IF-ED VR and the Rokinon 85mm F1.4 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. Nikon Micro-105mm f2.8G IF-ED VR is the longer of the two lenses at 116mm. The Rokinon 85mm F1.4 with a length of 75mm, is 41mm shorter. Besides being longer, the Nikon Micro-105mm f2.8G IF-ED VR also has a larger diameter of 83mm compared to the Rokinon 85mm F1.4's 78mm 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. Rokinon 85mm F1.4 weighs 539g, 25% (181g) lighter than the Nikon Micro-105mm f2.8G IF-ED VR's weight of 720g.
Filter Threads
The Nikon Micro-105mm f2.8G IF-ED VR has a filter size of 62mm whereas the Rokinon 85mm F1.4 has a 72mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 62mm filters that we recommend you to consider for the Nikon Micro-105mm f2.8G IF-ED VR:
And these are the 72mm filters that we recommend for the Rokinon 85mm F1.4:
Lens Mounts
Both the Nikon Micro-105mm f2.8G IF-ED VR and the Rokinon 85mm F1.4 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.
Rokinon 85mm F1.4 is also available in Canon EF , Four Thirds, Pentax KAF, Sony Alpha and Samsung NX mounts.
Focal Range
Nikon Micro-105mm f2.8G IF-ED VR 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.
On the other hand, the Rokinon 85mm F1.4 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.