The Leica Vario-Elmarit-SL 24–90 mm f/2.8–4 ASPH. is very fast and offers a large range of focal lengths. A close focusing limit of 0.3 meters at its wide-angle setting and a maximum reproduction ratio of 1:3.8 at the telephoto end of the zoom range provide fascinating opportunities. Its optical image stabilisation (OIS) compensates for up to 3.5 stops of camera shake.
CONSTRUCTION DETAILS
Of the 18 elements in six moving groups, four are aspherical lens elements and 11 are elements made from glasses with anomalous partial dispersion for the correction of chromatic aberrations. Only one very light element is moved for focusing. Very fast, almost-silent, precise focusing is enabled by a specially developed drive concept comprising a stepping motor and linear positioning. This means that the overall length of the lens does not change during focusing. The rectangular form of the lens hood supplied with the lens very effectively suppresses undesirable reflections and stray light and prevents flare.
| Angle of view (diagonal, horizontal, vertical) | at 24 or 90mm: approx. 82,4°, 72,1°, 51,8° or 27,8°, 23,3°,15,7 |
| Optical design | |
| Number of lenses/groups | 18/15 |
| Aspherical surfaces: | 4 |
| Position of entrance pupil | at 24 or 90mm: 103,9 or 92,6mm (in the direction of light incidence in front of the bayonet fitting contact area) |
| Image stabilization: | Multiple axis system, stabilization performance 3.5 shutter speed stages in accordance with CIPA testing conditions |
| Distance setting: | Setting either automatic (Auto-focus) or manual, modes are set on the camera |
| Focusing range: at 24 or 90mm: 0.3 or 0.45m to ∞ Smallest object field/biggest scale: | at 24 or 90mm: approx. 173 x 260mm/1:7.2 or 92 x 137mm/1:3.8 |
| Aperture: | Setting/Function electronically controlled aperture, setting via turn/push wheel on camera, half values can also be set |
| Lowest value: | 22 |
| Bayonet fitting: | Leica L bayonet fitting with contact strip |
| Filter mount/lens hood: | External bayonet fitting for lens hood (included), internal thread for E82 filters, filter mount does not rotate |
| Finish: | Black anodized |
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Dimensions and weight: Length of the bayonet fitting contact surface: |
at 24 or 90mm, (without/with lens hood) approx. 138/170mm or 182/212mm |
| Largest diameter approx: | 88 mm |
| Weight approx: | 1140 g |
| Warranty: | 2 years |