The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 8mm F3.5 EX DG Fisheye and the Nikon 16-35mm f4G ED VR 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 16-35mm f4G ED VR is the longer of the two lenses at 125mm. The Sigma 8mm F3.5 EX DG Fisheye with a length of 69mm, is 56mm shorter. Besides being longer, the Nikon 16-35mm f4G ED VR also has a larger diameter of 83mm compared to the Sigma 8mm F3.5 EX DG Fisheye's 74mm 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. Sigma 8mm F3.5 EX DG Fisheye weighs 400g, which means it is 285g (41%) lighter than the Nikon 16-35mm f4G ED VR which has a weight of 685g.
Lens Mounts
Both the Sigma 8mm F3.5 EX DG Fisheye and the Nikon 16-35mm f4G ED VR 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 8mm F3.5 EX DG Fisheye is also available in the Canon EF and Sigma SA mounts.
Focal Range
Sigma 8mm F3.5 EX DG Fisheye is a prime lens with fixed focal lenght of 8mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
12mm.
On the other hand, the Nikon 16-35mm f4G ED VR has a focal range of 16-35mm and 2.2X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 24 - 52.5mm.