Its contrast and detail rendition even at full aperture set new standards among wide-angle lenses. Stopping down by just 1 to 1.5 apertures delivers maximum optical performance across the entire image field.The high levels of brilliance and plasticity are retained even in close-up photography.
This lens is ideal for photojournalism assignments and architectural shots. The 24 mm focal length means that converging verticals, such as those encountered when shooting buildings, are easy to master with this lens without having to work from too great a distance. Though its focal length is only 3 mm longer than that of a 21 mm lens, the 24 mm yields surprisingly natural perspectives with no indication that a super-wide-angle lens has been used.
Lens Shape

Technical Data
| Angle of view (diagonal, horizontal, vertical) Optical design | 84°, 74°, 53° |
| Optical Design | Number of elements / groups: 7 / 5 Focal length: 24.4 mm Entrance pupil: 20.7 mm (related to the first lens surface in light direction) Focusing range: 0.7 m to Infinity |
| Distance setting | Scale: combined meter/feet-increments Smallest object field: 630 mm x 950 mm Highest reproduction ratio: 1:26 |
| Diaphragm | Setting / Type: with clickstops (including half values), manual diaphragm Smallest aperture: f/16 |
| Bayonet Filter | Leica M quick-change bayonet |
| Filter (type) | internal thread for screw-in type filters E 55 |
| Lens Hood | separate, clip-on type, lockable |
| Dimensions and weight | Length: 45 mm Largest diameter: 58 mm Weight: approx. 290 g / 388 g (black anodized- / silver chrome finish ) |