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 1 10mm f2.8 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. Sigma 8mm F3.5 EX DG Fisheye is the longer of the two lenses at 69mm. The Nikon 1 10mm f2.8 with a length of 22mm, is 47mm shorter. Besides being longer, the Sigma 8mm F3.5 EX DG Fisheye also has a larger diameter of 74mm compared to the Nikon 1 10mm f2.8's 56mm 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. Nikon 1 10mm f2.8 weighs 77g, 80% (323g) lighter than the Sigma 8mm F3.5 EX DG Fisheye's weight of 400g.
Lens Mounts
The Sigma 8mm F3.5 EX DG Fisheye has the Nikon F (FX) lens mount whereas the Nikon 1 10mm f2.8 has the Nikon 1 lens mount. Some of the latest released cameras that are compatible with these mounts are Nikon D6, Nikon D780 and Nikon D3500 for the Nikon F (FX) Mount and Nikon 1 J5, Nikon 1 S2 and Nikon 1 J4 for the Nikon 1 Mount.
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 1 10mm f2.8 is a prime lens with fixed focal lenght of 10mm which has an effective (full-frame 35mm equivalent) focal range of 27mm when used on a 1" format camera.
