7Artisans 4mm F2.8 Fujifilm X Mount

The 4mm f/2.8 Circular Fisheye Lens from 7artisans Photoelectric provides FUJIFILM X-mount mirrorless cameras with an extremely wide 225° angle of view in a compact form factor. 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.

The ultra-wide-angle 4mm f/2.8 prime is designed for FUJIFILM X-mount mirrorless cameras and provides a 6mm equivalent focal length.
Bright f/2.8 maximum aperture is well-suited to working in low and difficult lighting conditions.
An 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 normal images together for full 360° panoramas.
Manual focus design offers a minimum focusing distance of 3.3 inches.
Its lightweight and small design makes this lens suitable for use on drones and gimbals.