Features: Standard Prime Lens25mm focal length, Micro 4/3 mount, compatible with Panasonic & Olympus camera, suitable for landscape, portrait, street snap, night scene photography. F1.7 Large ApertureEven in low-light environments, you can produce amazing moments by this camera lens, and the background is creamy and dreamy. Auto Focus/ Manual Focus SwitchAutomatic or manual focus can be switched freely. And even in AF mode, the focusing ring can be rotated to full-time manual focus. High Precision Stepper MotorEquipped with high speed and high precision stepper motor, Cooperate with brand new control circuit to achieve fast, quiet and precise focus. 6 Groups & 7 Blades6 groups of 7 blades structure of lens, including one ultra-low dispersion lens and two aspheric lens Specifications: : YONGNUO Focal Length: 25mm Angle Range: 49.4° diagonal, 30.4° vertical, 39.9° horizontal Lens Construction: 6 groups 7 blades Aperture Blades: 7 pieces Aperture: F1.7-F22 Mini. Focusing Distance: 20cm Max. Magnification: 0.2times Filter Diameter: 52mm Max. Diameter and Length: Approx.60.8 * 66.6mm/ 2.4 * 2.6in Item Weight: 150g/ 5.3oz Note: The camera showed in the picture is not included. Package List: 1 * Camera Lens 2 * Lens Caps 1 * Users Manual(English & Chinese)