Panasonic Lumix G 20mm F1.7 II ASPH. Lens

The LUMIX G 20mm / F1.7 II ASPH. is a pancake walkaround lens that keeps a body pocketable. It is a Micro Four Thirds lens, so the 20mm focal length frames like 40mm on a 35mm camera, and the optical formula runs 7 elements in 5 groups (2 aspherical).

Maximum aperture is F1.7, closing to F16, the diaphragm has 7 blades in a circular iris, and it focuses to 0.2m. Maximum magnification is 0.13x (0.25x, 35mm equivalent), the filter thread is 46mm, and the lens measures 63.0mm max diameter x approx. 25.5mm length (retracted) at approx. 87g (excluding caps).