Panasonic H-H020AK LUMIX G 20MM F1.7 II ASPH LensCapture Stunning Images with a Compact Prime Lens The Panasonic LUMIX G 20mm F1. 7 II ASPH lens is designed for Micro Four Thirds cameras. With a bright F1. 7 aperture and two aspherical lenses, this lens delivers superb optical performance and beautiful soft focus effects. Focal Length: 20mm (40mm equivalent on 35mm film camera) Aperture: F1. 7 Lens Construction: 7 lenses in 5 groups, with 2 aspherical lenses Mount: Micro Four Thirds Closest Focusing