Sigma 16mm f/1.4 DC DN Contemporary vs Olympus M.Zuiko Digital 17mm f/1.8
Sigma 16mm f/1.4 DC DN Contemporary is 0.4 stops faster at f/1.4 vs f/1.8, giving better low-light performance and shallower depth of field. Sigma 16mm f/1.4 DC DN Contemporary covers 16mm (32mm equiv) while Olympus M.Zuiko Digital 17mm f/1.8 is 17mm (34mm equiv). Olympus M.Zuiko Digital 17mm f/1.8 is significantly lighter at 120g vs 405g.
Verdict
Sigma 16mm f/1.4 DC DN Contemporary is the better choice for low-light and subject separation.
 Sigma 16mm f/1.4 DC DN Contemporary |  Olympus M.Zuiko Digital 17mm f/1.8 | |
|---|---|---|
| Buy | Amazon ↗ | Amazon ↗ |
| Brand | Sigma | M.Zuiko |
| Type | prime | prime |
| Released | 2017-12 | 2013-01 |
| Focal length | 16mm | 17mm |
| FF equivalent | 32mm | 34mm |
| Max aperture | f/1.4 | f/1.8 |
| Aperture blades | 9 | 7 |
| Autofocus | Stepping Motor | MSC |
| Min focus distance | 0.25m | 0.25m |
| Max magnification | 0.1x | 0.09x |
| OIS | No | No |
| Dual IS compatible | No | No |
| Weather sealed | No | No |
| Weight | 405g | 120g |
| Dimensions | 72.2mm × ⌀72.2mm | 35.5mm × ⌀57.5mm |
| Elements / Groups | 13 / 9 | 9 / 6 |
| Price | $389 | $399 |