The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Nikon AF-P DX 10-20mm F4.5-5.6G VR and the Sigma 10-20mm F4-5.6 EX DC 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 10-20mm F4-5.6 EX DC HSM is the longer of the two lenses at 81mm. The Nikon AF-P DX 10-20mm F4.5-5.6G VR with a length of 73mm, is 8mm shorter. Besides being longer, the Sigma 10-20mm F4-5.6 EX DC HSM also has a larger diameter of 84mm compared to the Nikon AF-P DX 10-20mm F4.5-5.6G VR's 77mm 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 AF-P DX 10-20mm F4.5-5.6G VR weighs 230g, which means it is 240g (51%) lighter than the Sigma 10-20mm F4-5.6 EX DC HSM which has a weight of 470g.
Filter Threads
The Nikon AF-P DX 10-20mm F4.5-5.6G VR has a filter size of 72mm whereas the Sigma 10-20mm F4-5.6 EX DC HSM has a 77mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 72mm filters that we recommend you to consider for the Nikon AF-P DX 10-20mm F4.5-5.6G VR:
And these are the 77mm filters that we recommend for the Sigma 10-20mm F4-5.6 EX DC HSM:
Lens Mounts
The Nikon AF-P DX 10-20mm F4.5-5.6G VR has the Nikon F (DX) lens mount whereas the Sigma 10-20mm F4-5.6 EX DC HSM has the Pentax KAF lens mount. Some of the latest released cameras that are compatible with these mounts are Nikon D3500, Nikon D7500 and Nikon D5600 for the Nikon F (DX) Mount and Pentax K-3 III Mono, Pentax KF and Pentax K-3 III for the Pentax KAF Mount.
Sigma 10-20mm F4-5.6 EX DC HSM is also available in Canon EF , Four Thirds, Sony Alpha, Sigma SA and Nikon F (DX) mounts.
Focal Range
Both lenses have the same focal range of
10-20mm but while Nikon AF-P DX 10-20mm F4.5-5.6G VR has the fastest aperture of
F4.5-5.6, the Sigma 10-20mm F4-5.6 EX DC HSM's widest aperture value is
F4.0 - F5.6.