This 0.39X wide angle macro lens can create a wider perspective and deeper sensor. The professional Japanese optical glass can take more light in and reduce glare and reflection. Lens mount 30mm, comes with a 37mm to 30mm adapter; work with 30mm/37mm camera mount.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.Specifications:Material: Aluminum Alloy & Optical GlassLens Multiples: 0.39XStructure: 2GLens Mount: 37mmAdapter: 37mm to 30mmND & CPL Mount: 74mmM.O.D: 0.1mmMax. Image Circle: greater than or equal to diameter 6.2mmEFFL: 4.95~49.5mmFunction: Macro Lens, Wide AngleItem Size: 7.4 * 7.4 * 4.4cm / 2.9 * 2.9 * 1.7" (with covers)Item Weight: 135g / 4.8oz (with covers)Package Size: 8 * 8 * 7.5cm / 3.1 * 3.1 * 3"Package Weight: 173g / 6.1ozPackage List:1 * Lens with covers1 * Adapter1 * Pouch