The 5.8mm f/3.5 Circular Fisheye Lens for Micro Four Thirds from Lensbaby is a manual focus lens with a wide 5.8mm focal length that provides a circular image optimized for Micro Four Thirds cameras. The lens has an aperture range of f/3.5 to f/22 and captures a 185° angle of view. It features a close focusing range starting at 0.25" and going to infinity, all while providing expansive depth of field and image sharpness. This Lensbaby lens doesn't bend, so the fisheye image is always perfectly centered in the frame.