The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Nikon Z 50mm F1.8 S and the Sigma 10-20mm F3.5 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 F3.5 EX DC HSM is the longer of the two lenses at 88mm. The Nikon Z 50mm F1.8 S with a length of 87mm, is 1mm shorter. Besides being longer, the Sigma 10-20mm F3.5 EX DC HSM also has a larger diameter of 87mm compared to the Nikon Z 50mm F1.8 S's 76mm 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 50mm F1.8 S weighs 415g, which means it is 105g (20%) lighter than the Sigma 10-20mm F3.5 EX DC HSM which has a weight of 520g.
Filter Threads
The Nikon Z 50mm F1.8 S has a filter size of 62mm whereas the Sigma 10-20mm F3.5 EX DC HSM has a 82mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 62mm filters that we recommend you to consider for the Nikon Z 50mm F1.8 S:
And these are the 82mm filters that we recommend for the Sigma 10-20mm F3.5 EX DC HSM:
Lens Mounts
The Nikon Z 50mm F1.8 S has the Nikon Z lens mount whereas the Sigma 10-20mm F3.5 EX DC HSM has the Canon EF 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 Canon T8i, Canon 90D and Canon SL3 for the Canon EF Mount.
Sigma 10-20mm F3.5 EX DC HSM is also available in Pentax KAF3 , Sony Alpha, Sigma SA and Nikon F (DX) mounts.
Focal Range
Nikon Z 50mm F1.8 S is a prime lens with fixed focal lenght of 50mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
75mm.
On the other hand, the Sigma 10-20mm F3.5 EX DC HSM has a focal range of 10-20mm and 2.0X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 16-32mm when used on a APS-C / DX format camera.
