Olympus M.ZUIKO DIGITAL ED 12-40mm F2.8 PRO Interchangeable Lens

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Constant f2.8 maximum aperture
Focal length : 12-40mm, Minimum Focus Distance-7.87 inches (20 cm)
Drip Proof;Dustproof, Splash proof, and Freeze proof construction. Lens Construction:14 Elements in 9 Groups (Aspherical ED lens, 2 Aspherical lenses, DSA lens, 2 ED lenses, HD lens, 2 HR lense)
Includes lens hood and pouch,Filter Size 62mm, Equipped with manual focus clutch mechanism; Compatible with Olympus and Panasonic cameras; Constant f2.8 maximum aperture; Focal length : 12-40mm, Minimum Focus Distance-7.87 inches (20 cm)