Product SpecificationsAngle of View (horizontal, vertical, diagonal): 97° 10"~64°30", 74°10"~45°30", 107°30"~74°20"Number of Aperture Blades: 7Minimum Aperture: 22-29Minimum Focus Distance: 0.22mMaximum shooting magnification: 0.15xFilter Diameter: 2.6 inches (67 mm)Maximum Diameter x Length: φ2.9 x 2.8 inches (74.6 x 72 mm)Weight: 8.5 oz (240 g).Image stabilization effect (Compliant with CPA guidelines): 4 levels (focal length 0.7 inch (18 mm) (equivalent to 1.4 inch (35 mm) equivalent), when using EOS 7D. )