徠卡VARIO-ELMARIT-SL 24–90 f/2.8–4 ASPH.鏡頭
徠卡SL鏡頭系列中的標準變焦鏡頭
The Vario-Elmarit-SL 24–90 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.
Technical Data Files
Leica Vario-Elmarit-SL 24-90mm f/2.8-4 ASPH.
English
pdf
1.16 MB
TECHNICAL DATA
| Order number | 11 176 |
| Field angle (diagonal, horizontal, vertical) | Focal length 24mm: 82.4°/72.1°/51.8° Focal length 90mm: 27.8°/23.3°/15.7 |
| Optical design | |
|---|---|
| Number of lenses/groups | 18/15 |
| Number of asph. surfaces / lenses | 5/4 |
| Entrance pupil position | Focal length 24 mm: 103.9 mm focal length 90 mm: 92.6 mm |
| Working range | Focal length 24 mm: 0.3 m to infinity focal length 90 mm: 0.45 m to infinity |
| Distance setting | |
|---|---|
| Smallest object field | Focal length 24 mm: 173 x 260 mm focal length 90 mm: 92 x 137 mm |
| Largest reproduction ratio | Focal length 24 mm: 1:7.2 focal length 90 mm: 1:3.8 |
| Aperture | |
|---|---|
| Setting/function | Electronically controlled aperture, set using turn/push wheel on camera, including half and third values |
| Aperture setting range | Focal length 24mm: 2.8-22; focal length 90mm: 4-22 |
| Lowest value | 22 |
| O.I.S. Performance as per CIPA | 3.5 stops (at focal length f=90mm with Leica SL (Typ 601) camera) |
| Bayonet/sensor format | L-Mount, full-frame 35mm format |
| Filter mount | E82 |
| Dimensions and weight | |
|---|---|
| Length to bayonet mount | Focal length 24 mm: 138 mm (without lens hood) |
| Largest diameter | 88 mm |
| Weight | 1.140 g |
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