NiSi will announce a new ultra wide prime lens 15mm f/4 FE lens for Sony E-mouunt on January 8th. The US price for this lens is $539. Here are first leaked images of NiSi 15mm f/4 FE lens.
NiSi 15mm f/4 FE lens specifications
| Focal Length（full frame） | 15mm |
| Focal Length（APS-C） | 22mm |
| Lens Mount | SONY E/CANON RF/NIKON Z/FUJIFILM X |
| Format Compatibility | Full frame |
| Aperture Range | f/4 – f/22 |
| Focus Type | Manual Focus |
| Lens Elements/Groups | 12 Elements in 10 Groups |
| Filter Thread | 72mm |
| Minimum Focus Distance | 0.2m |
| Maximum Magnification | 0.13x |
| Angle of View | 112° (APS-C: 78°) |
| Diaphragm Blades | 10 |
| Weight | 470g |
| Dimensions (ø x L) | 75.6mm×80.5mm |