Size and Weight Comparison
Size of a lens is an important deciding factor when comparing two lenses.Sigma 14-24mm F2.8 DG HSM is the longer of the two lenses at 135mm. The Nikon 14-24mm f2.8G ED with a length of 132mm is 3mm shorter. On the other hand, the Nikon 14-24mm f2.8G ED has a larger diameter of 98mm compared to Sigma 14-24mm F2.8 DG HSM's 96mm 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. Nikon 14-24mm f2.8G ED weighs 970g, 18% (180g) lighter than the Sigma 14-24mm F2.8 DG HSM's weight of 1150g.
Below you can find the dimension and weight table of the 'Wideangle Zoom Lenses in Nikon F (FX) Mount for size comparison purposes.
Wideangle Zoom Lenses in Nikon F (FX) Mount for Size Comparison
Both Sigma 14-24mm F2.8 DG HSM and Nikon 14-24mm f2.8G ED 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 14-24mm F2.8 DG HSM is also available in Canon EF and Sigma SA mounts.
Both lenses have the same focal range of 14-24mm and the fastest aperture of F2.8.