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 14mm F1.8 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 14mm F1.8 DG HSM is the longer of the two lenses at 126mm. The Nikon AF-P DX 10-20mm F4.5-5.6G VR with a length of 73mm, is 53mm shorter. Besides being longer, the Sigma 14mm F1.8 DG HSM also has a larger diameter of 95mm compared to the Nikon AF-P DX 10-20mm F4.5-5.6G VR's 77mm diameter.
Below you can find a scaled side-by-side image of Nikon AF-P DX 10-20mm F4.5-5.6G VR and Sigma 14mm F1.8 DG HSM to get a better idea of how their sizes compare in real life.
Comparison image of the Nikon AF-P DX 10-20mm F4.5-5.6G VR and the Sigma 14mm F1.8 DG HSM Size and Weight 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 940g (80%) lighter than the Sigma 14mm F1.8 DG HSM which has a weight of 1170g.
Lens Mounts
The Nikon AF-P DX 10-20mm F4.5-5.6G VR has the Nikon F (DX) lens mount whereas the Sigma 14mm F1.8 DG HSM has the Nikon F (FX) 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 Nikon D6 , Nikon D780 and Nikon D3500 for the Nikon F (FX) Mount.
Sigma SA and Canon EF mounts.
Focal Range
Nikon AF-P DX 10-20mm F4.5-5.6G VR has a focal range of 10-20mm and
2.0X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of
15-30mm when used on a APS-C / DX format camera.
On the other hand, the Sigma 14mm F1.8 DG HSM is a prime lens with fixed focal lenght of 14mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 21mm .
