The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Nikon Z 800mm F6.3 VR S and the Sigma 800mm F5.6 EX DG HSM 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 800mm F5.6 EX DG HSM is the longer of the two lenses at 521mm. The Nikon Z 800mm F6.3 VR S with a length of 385mm, is 136mm shorter. Besides being longer, the Sigma 800mm F5.6 EX DG HSM also has a larger diameter of 157mm compared to the Nikon Z 800mm F6.3 VR S's 140mm 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 Z 800mm F6.3 VR S weighs 2385g, which means it is 2515g (51%) lighter than the Sigma 800mm F5.6 EX DG HSM which has a weight of 4900g.
Filter Threads
Both the Nikon Z 800mm F6.3 VR S and the Sigma 800mm F5.6 EX DG HSM have the same Filter thread size of 46mm.
Below are links to the 46mm filters that we recommend you to consider for these lenses:
Lens Mounts
The Nikon Z 800mm F6.3 VR S has the Nikon Z lens mount whereas the Sigma 800mm F5.6 EX DG HSM has the Sigma SA lens mount. Some of the latest released cameras that are compatible with these mounts are Nikon ZR, Nikon Z5 II and RED Komodo-X 6K Z for the Nikon Z Mount and Sigma Quattro, Sigma Quattro H and Sigma SD1 Merrill for the Sigma SA Mount.
Sigma 800mm F5.6 EX DG HSM is also available in Canon EF and Nikon F (FX) mounts.
Focal Range
Both lenses have the same focal range of
800mm but while Nikon Z 800mm F6.3 VR S has the fastest aperture of
F6.3, the Sigma 800mm F5.6 EX DG HSM's widest aperture value is
F5.6.
