Panasonic Leica DG Summilux 12mm F1.4 ASPH. Lens

The LEICA DG SUMMILUX 12mm / F1.4 ASPH. is a fast wide-angle for landscape, astro and available-light interiors. It is a Micro Four Thirds lens, so the 12mm focal length frames like 24mm on a 35mm camera, and the optical formula runs 15 elements in 12 groups (2 aspherical, 1 ED, 2 UED). It is built to the Leica DG optical standard Panasonic applies to its higher-tier glass.

Maximum aperture is F1.4, closing to F16, the diaphragm has 9 blades in a circular iris, and it focuses to 0.2m. Maximum magnification is 0.1x (0.2x, 35mm equivalent), the filter thread is 62mm, and the lens measures 70mm max diameter x approx. 70mm length at approx. 335g (excluding caps and hood). A physical aperture ring is fitted.