APO-Summicron-M 35 f/2 ASPH.
| Lens | Leica APO-Summicron-M 35mm f/2 ASPH. |
| Order number | 11699 |
| View angle (diagonal/horizontal/vertical) Full-frame (24 × 36 mm) |
62,5°/53,6°/37,2° |
| Lens system | |
| Number of lenses/assemblies | 10/5 |
| Number of aspherical surfaces | 4 |
| Position of the entrance pupil before the bayonet | 13.8 mm |
| Focus range | 0.3 m to ∞ |
| Focusing | |
| Scale | Combined scale meter (m)/foot (ft) |
| Smallest object field | Full-frame: 135 x 203 mm |
| Largest scale | 1:5,6 |
| Diaphragm | |
| Setting/Function | Click-stop diaphragm with half-increment lock settings |
| Smallest aperture | 16 |
| Number of diaphragm blades | 11 |
| Bayonet | Leica M bayonet with 6-bit encoding |
| Filter thread | E39 |
| Lens hood | screw-on |
| Dimensions | |
| Length | Approx. 49,3 mm |
| Diameter | Approx. 53 mm |
| Weight | Approx. 320 g |
An optical masterpiece.
With its intricate design, special glass types and high-precision craftsmanship, the APO-Summicron-M 35 f/2 ASPH. ranks among Leica’s most elaborately constructed lenses. The result: a close-to flawless imaging performance. Three of the ten lens elements (divided into five groups) feature aspherical surfaces – one of them on both sides. In addition, the new M lens renders images with practically no chromatic aberration, thanks to apochromatic correction – a rare quality in lenses of this focal length.
The specially designed lens hood, in combination with highly effective anti-reflective coatings, make the APO-Summicron-M 35 f/2 ASPH. virtually impervious to stray light and glare.