| Focal Length | 4mm (35mm Equivalent Focal Length: 6mm) |
| Maximum Aperture | f/2.8 |
| Minimum Aperture | f/16 |
| Lens Mount | FUJIFILM X |
| Lens Format Coverage | APS-C |
| Angle of View | 210° |
| Minimum Focus Distance | 3.15" / 8 cm |
| Maximum Magnification | 0.11x |
| Optical Design | 7 Elements in 6 Groups |
| Diaphragm Blades | 7 |
| Focus Type | Manual Focus |
| Image Stabilization | No |
| Filter Size | None |
| Dimensions (ø x L) | 1.8 x 1" / 45.2 x 25.5 mm |
| Weight | 4.8 oz / 135 g |
| Package Weight | 0.74 lb |
| Box Dimensions (LxWxH) | 4 x 3.8 x 3.4" |