Size and Weight Comparison
The size of a lens is a crucial factor to consider when comparing two lenses. Sigma 90mm F2.8 DG DN C is the longer of the two lenses at 60mm. The Sigma 17mm F4 DG DN C with a length of 49mm, is 11mm shorter. On the other hand, there is no difference between the max diameters of these lenses, both coming at 64mm.
Sigma 90mm F2.8 DG DN C vs Sigma 17mm F4 DG DN C Lenses Size Comparison
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. Sigma 17mm F4 DG DN C weighs 225g, which means it is 70g (23%) lighter than the Sigma 90mm F2.8 DG DN C which has a weight of 295g.
Filter Threads
Both the Sigma 17mm F4 DG DN C and the Sigma 90mm F2.8 DG DN C have the same Filter thread size of 55mm.
Below are links to the 55mm filters that we recommend you to consider for these lenses:
Lens Mounts
Both the Sigma 17mm F4 DG DN C and the Sigma 90mm F2.8 DG DN C has the same Leica L lens mount. Some of the latest released cameras that are compatible with the Leica L lenses are Leica SL3-P, Panasonic S1 II and Panasonic S1 IIE.
Sigma 17mm F4 DG DN C is also available in the Sony E mount.
Sigma 90mm F2.8 DG DN C is also available in Sony E mount.
Focal Range
Sigma 17mm F4 DG DN C is a prime lens with fixed focal lenght of 17mm.
On the other hand, the Sigma 90mm F2.8 DG DN C is a prime lens with fixed focal lenght of 90mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 135mm.
