A fast and optically refined wide-angle prime, the Leica DG Summilux 12mm f/1.4 ASPH. Lens from Panasonic is a 24mm equivalent lens designed for Micro Four Thirds digital cameras. Characterized by its truly bright f/1.4 maximum aperture, this lens is ideal for working in low-light conditions and also affords a wealth of control over focus placement for using shallow depth of field techniques. The optical design employs a pair of aspherical elements, two ultra extra-low dispersion elements, and one extra-low dispersion element in order to control both spherical and chromatic aberrations for a high degree of sharpness and clarity from edge to edge. Benefitting the optical assets, this lens also incorporates a smooth and quiet autofocus motor that is well-suited to both stills and video recording, and a manual AF/MF switch lends direct focus mode adjustment for more intuitive handling. Additionally, the all-metal construction of the lens is also weather-resistant in order to permit working in trying environmental conditions. Pairing Leica's design legacy with Panasonic's technological innovation, this versatile wide-angle prime is distinguished by both its optical merits as well as intuitive handling and contemporary functionality.
| Lens Construction: | 15 elements in 12 groups (2 aspherical lenses, 1 ED lens, 2 UED lenses) |
| Mount: | Micro Four Thirds mount |
| Focal Length: | Focal Lengthf=12mm (35mm camera equivalent 24mm) |
| Aperture Type: | 9 diaphragm blades / Circular aperture diaphragm |
| Maximum Aperture: | F1.4 |
| Minimum Aperture: | F16 |
| Closest Focusing Distance: | 0.20m / 0.66ft |
| Maximum Magnification: | Approx. 0.1x / 0.2x (35mm camera equivalent) |
| Diagonal Angle of View: | 84° |
| Filter Size: | φ62mm / 2.44inch |
| Max. Diameter: | φ70.0mm / 2.76inch |
| Overall Length: | Approx. 70mm / 2.76inch (from the tip of the lens to the base side of the lens mount) |
| Weight: | Approx. 335g / 11.82oz (excluding lens cap, lens rear cap and lens hood). |
