8mm / F3.5 offers a diagonal angle of view of 180 degrees for both photos and HD movies; equivalent to 16mm on a full-frame camera. Ten lenses in nine groups; adoption of an ED lens achieves a stable descriptive performance from close-up to infinity. Closest focusing distance is as short as 0.1m; inner focus system enables a long working distance. Seven blades give the aperture a rounded shape that produces an attractively smooth effect in out-of-focus areas when shooting at larger aperture settings. Compatible with Panasonic Micro Four Thirds format digital cameras