Chinese lens company TTArtisan has announced the availability of its new 11mm F2.8 fisheye lens for Sony E-mount camera systems.

The lens’ optical formula consists of 11 elements in 7 groups. It’s constructed of aluminum and brass and features an aperture range of F2.8-F16 with clicked aperture points.

It has a minimum focusing distance of 17cm, a ten-blade aperture diaphragm and weighs in at 485g. It is currently available to order for $215.