Laowa has made some great lenses lately and now they have a 4mm fisheye coming for E-Mount, X-Mount, Canon EF-M Mount, and m43. The new lens is made up of 6 groups of 7 optical structures and 7 aperture blades and has a FOV of 210 , magnification of 0.11x, and is 135g 45.2 x 25.5mm. The lens is very small and made of metal with good handling and focus dampening.
via Weibo