AstrHori unveiled the new 6mm F2.8 CIRCULAR FISHEYE interchangeable lens. The AstrHori 6mm F2.8 CIRCULAR FISHEYE is a circular fisheye lens compatible with full-frame sensors. With a 220° field of view, it can depict the world as a sphere. With a bright F2.8 aperture and an optical design of 10 elements in 8 groups, it delivers clear, high-contrast images right to the periphery, enabling vivid depictions of night scenes and starry skies.
The intuitive operation of the focus and aperture rings, the matte-finish metal lens barrel and the black and orange design combine to create a comfortable shooting experience and a sense of ownership. The lightweight and compact body, weighing approximately 340g, is easy to carry and is ideal for outdoor activities and travel.
With a minimum focusing distance of 0.08m, you can get close to the subject for creative compositions, and you can enjoy a variety of photography with this lens, including miniature garden-like expressions that capture the landscape like water droplets or glass beads. 360° panoramas and VR materials can also be shot with a small number of frames.
Main Features
220° viewing angle and circular fisheye lens
It creates a visual expression that envelops you in all directions, allowing you to take unique photos that make it seem as if the world has been condensed into a sphere.
Bright F2.8 lens with excellent optical performance
The optical design, which consists of 10 lenses in 8 groups, including 4 high-refractive-index lenses and 2 ED lenses, delivers clear images with high contrast from the center to the edges, even when shooting night scenes or starry skies.
Satisfying Operation Design
The matte-finished metal lens barrel features orange engraving that stands out against the black background.
Excellent operability
The focus ring has just the right amount of torque, and the aperture ring has a click feeling at key values, making for comfortable operation.
Portability and durability
Although it is full-frame compatible, it weighs approximately 340g and has a robust metal barrel design, making it safe to carry when traveling or taking outdoor photos.
AstrHori 6mm F2.8 Specification
| Supported image size | 35mm full size |
| color | black |
| focal length | 6mm |
| Angle of view | 220° |
| Focus Mode | MF (Manual Focus) |
| Aperture blades | 8 sheets |
| Lens construction | 10 elements in 8 groups (including 4 high refractive index lenses and 2 ED lenses) |
| Aperture range | F2.8-F16 |
| Minimum focusing distance | 0.08m |
| Filter diameter | Cannot be installed |
| size | Φ69mm×52mm (E: excluding mount part) Φ69.5mm×57mm (Z: excluding mount part) |
| mass | Approx. 340g (E) / Approx. 354g (Z) |
| accessories | Lens cap, rear cap |
| Manufacturer’s warranty | 2 years (covering natural failures) |
*Due to differences in the characteristics of image sensors for each camera/model, color casts, false colors, blurring, and reduced resolution may occur in the periphery of images when using ultra-wide-angle or oblique light lenses. This phenomenon is due to the camera’s specifications and is not a malfunction.
