| Focal Length | 4mm |
| Maximum Aperture | f/2.8 |
| Minimum Aperture | f/16 |
| Lens Mount | FUJIFILM X |
| Lens Format Coverage | APS-C |
| Angle of View | 225° |
| Minimum Focus Distance | 3.3" / 8.5 cm |
| Optical Design | 10 Elements in 8 Groups |
| Diaphragm Blades | 7 |
| Focus Type | Manual Focus |
| Image Stabilization | No |
| Filter Size | None |
| Dimensions (ø x L) | 2.4 x 2.1" / 60 x 54 mm |
| Length at Maximum Extension | 2.1" / 54 mm |
| Weight | 7.1 oz / 201 g |
| Package Weight | 0.81 lb |
| Box Dimensions (LxWxH) | 4.7 x 4 x 2.8" |