The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 85mm F1.4 DG HSM and the Nikon 600mm f4D ED-IF II for their suitability to various photography scenarios:
Size and Weight Comparison
The size of a lens is an important deciding factor when comparing two lenses. Nikon 600mm f4D ED-IF II is the longer of the two lenses at 455mm. The Sigma 85mm F1.4 DG HSM with a length of 126mm, is 329mm shorter. Besides being longer, the Nikon 600mm f4D ED-IF II also has a larger diameter of 166mm compared to the Sigma 85mm F1.4 DG HSM's 95mm diameter.
The 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. Sigma 85mm F1.4 DG HSM weighs 1130g, which means it is 4770g (80%) lighter than the Nikon 600mm f4D ED-IF II which has a weight of 5900g.
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 the Sigma 85mm F1.4 DG HSM and the Nikon 600mm f4D ED-IF 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.
Sigma 85mm F1.4 DG HSM is also available in Sigma SA and Canon EF mounts.
Focal Range
Sigma 85mm F1.4 DG HSM 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.
Nikon 600mm f4D ED-IF II is a prime lens with fixed focal lenght of 600mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 900mm.