The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Nikon Z 12-28mm F3.5-5.6 PZ and the Sigma 18-50mm F2.8-4.5 DC OS 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 18-50mm F2.8-4.5 DC OS HSM is the longer of the two lenses at 89mm. The Nikon Z 12-28mm F3.5-5.6 PZ with a length of 64mm, is 25mm shorter. Besides being longer, the Sigma 18-50mm F2.8-4.5 DC OS HSM also has a larger diameter of 74mm compared to the Nikon Z 12-28mm F3.5-5.6 PZ's 72mm 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 12-28mm F3.5-5.6 PZ weighs 205g, which means it is 190g (48%) lighter than the Sigma 18-50mm F2.8-4.5 DC OS HSM which has a weight of 395g.
Filter Threads
Both the Nikon Z 12-28mm F3.5-5.6 PZ and the Sigma 18-50mm F2.8-4.5 DC OS HSM have the same Filter thread size of 67mm.
Below are links to the 67mm filters that we recommend you to consider for these lenses:
Lens Mounts
The Nikon Z 12-28mm F3.5-5.6 PZ has the Nikon Z lens mount whereas the Sigma 18-50mm F2.8-4.5 DC OS HSM has the Nikon F (DX) lens mount. Some of the latest released cameras that are compatible with these mounts are RED Komodo-X 6K Z, Nikon Z50 II and Nikon Z30 for the Nikon Z Mount and Nikon D3500, Nikon D7500 and Nikon D5600 for the Nikon F (DX) Mount.
Sigma 18-50mm F2.8-4.5 DC OS HSM is also available in Canon EF , Pentax KAF3, Sony Alpha and Sigma SA mounts.
Focal Range
Nikon Z 12-28mm F3.5-5.6 PZ has a focal range of 12-28mm and
2.3X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of
18-42mm when used on a APS-C / DX format camera.
On the other hand, the Sigma 18-50mm F2.8-4.5 DC OS HSM has a focal range of 18-50mm and 2.8X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 27-75mm when used on a APS-C / DX format camera.
