This lens is among the very best in terms of sheer quality of design. Its exceptional picture performance in such a compact package is an outstanding achievement of Leica's aspherical technology. The hallmarks of this remarkable lens include high contrast, superb detail rendition across the image field, excellent flatness of field, and very low coma - all at virtually the same quality even at distances down to 0.7 meters (28 in). The 35 mm focal length is already the standard for many Leica photographers. Ultra-high speed paired with outstanding optical characteristics and compact dimensions make this Summilux a universal wide-angle lens. Its uses range from medium-distance portrait photography to landscape shots. We can recommend it without reservation as a top lens, best suited for available light photography.
Angle of view (diagonal, horizontal, vertical): 63°, 54°, 38°
Optical design
Number of elements / groups: 9 / 5
Focal length: 35.6 mm
Entrance pupil: 16.8 mm (related to the first lens surface in light direction)
Focusing range: 0.7 m (2.3 ft) to Infinity
Distance setting
Scale: combined meter/feet-increments
Smallest object field: 420 mm x 630 mm
Highest reproduction ratio: 1:17.5
Diaphragm
Setting / Type: Preset, with clickstops (including half values), manual diaphragm
Smallest aperture: f/16
Bayonet: Leica M quick-change bayonet
Filter (type): internal thread for screw-on filters size E 46
Lens hood: separate, clip-on type, lockable
Dimensions and weight
Length: 46.2 mm / 1.8 in
Largest diameter: 53 mm / 2.1 in
Weight: approx. 250 g / 8.8 oz