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Key Features
Offering an extremely wide field of view in a compact form factor, the 4mm f/2.8 Circular Fisheye Lens from 7artisans Photoelectric provides a 225° angle of view for Micro Four Thirds-mount mirrorless cameras. As a circular fisheye, this lens is characterized by its noticeable distortion, and the greater-than-180° angle of view enables making 360° stitched panoramas with just two shots. Well-suited for low-light conditions, the lens sports a bright f/2.8 maximum aperture, and its manual focus design permits working with subjects as close as 3.3" away for close-up shooting, Additionally, the lens's lightweight design makes it well-suited for use on drones and gimbals.
Ultra wide-angle 4mm f/2.8 prime is designed for Micro Four Thirds-mount mirrorless cameras and provides an 8mm equivalent focal length.
Bright f/2.8 maximum aperture is well-suited to working in low and difficult lighting conditions.
Exceptionally wide 225° angle of view along with a circular fisheye design produces a highly distorted image for creative applications as well as the potential to stitch images together for full 360° panoramas.
Manual focus design offers a minimum focusing distance of 3.3".
Lightweight and small design makes this lens suitable for use on drones and gimbals.
| Focal Length | 4mm |
| Maximum Aperture | f/2.8 |
| Minimum Aperture | f/16 |
| Lens Mount | Micro Four Thirds |
| Lens Format Coverage | Micro Four Thirds |
| 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 |
Packaging Info
| Package Weight | 0.8 lb |
| Box Dimensions (LxWxH) | 4.6 x 3.9 x 2.8" |