7Artisans has announced the release of the 7Artisans 4mm F/2.8 Ultra Wide Angle Fish-Eye Lens. This circular Fish-Eye is designed for APS-C and smaller mirrorless cameras.
At the moment, it is available for Sony E, Fujifilm X, Micro 4/3 and EOS M mounts. The manufacturer especially emphasizes the compatibility of the lens with the DJI Inspire X5 drone.

With a 225° field of view, the lens can create a circular fisheye image on APS-C cameras. This allows you to create 360° panoramas in 2-3 shots.
The minimum focusing distance is 0.085m.
The optical scheme of the novelty 7Artisans 4mm F/2.8 consists of 10 elements in 8 groups. The aperture consists of 7 blades, the relative aperture of the diaphragm is adjustable from F / 2.8 to F / 16.

All lens focus and iris settings are made manually using a ring on the lens, and switching is click-free. This allows you to shoot video with the new lens.

Full specifications 7Artisans 4mm F/2.8:
• Designed for APS-C mirrorless cameras.
• Circular fisheye lens with 225 degree field of view.
• Sony E, Fujifilm X, Canon EF-M and Micro 4/3 mounts are supported.
• Manual focus and manual iris only.
• Focal length: 4mm.
• Aperture: F/2.8-F/16.
• MDF: 0.085 meters.
On the official website, the price of 7Artisans 4mm F/2.8 is $149.