Features: 0.39 times widen the lens angle - take photo from a bigger perspective. A detachable macro lens for close-up photography for small objects - closer and bigger . Professional Japan optical glass ensure better light transmission while reduce unwanted glare and reflection. High quality aluminum alloy construction. Lens mount 37mm, comes with a 37mm to 30mm adapter; work with 30mm/37mm camera mount. 74mm filter mount.