Transcript
LEICA VARIO-ELMARIT-SL 24-90 mm f/2.8-4 ASPH. Technical Data.
Illustration 1:2
TECHNICAL DATA Order no.
11 176
Field angle (diagonal, horizontal, vertical)
Focal length 24 mm: 82.4°/72.1°/51.8°; focal length 90 mm: 27.8°/23.3°/15.7°
Optical design Number of lenses/groups
18/15
Number of aspherical lenses
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 x137 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 values
Aperture setting range
Focal length 24 mm: 2.8-22; focal length 90 mm: 4-22
Lowest value
22
O.I.S. Performance as per CIPA
3.5 stops
Bayonet/sensor format
Leica L bayonet, full-frame 35 mm 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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LEICA VARIO-ELMARIT-SL 24-90 mm f/2.8-4 ASPH. Technical Data.
ENGINEERING DRAWING
LENS SHAPE
* * * *
Illustration 1:2
Aspherical lenses
With its wide range of focal lengths and high speed, the Leica Vario-Elmarit-SL 24-90 mm f/2.8-4 ASPH. is the ideal standard zoom lens in the Leica SL-System portfolio. This completely new design with internal focusing and integrated optical image stabilisation is impressive with its excellent imaging performance at distances from 30 cm to infinity, both at maximum aperture and stopped down. A total of 18 elements in six moving groups are employed to achieve the outstanding optical performance of this lens. In addition to four aspherical elements, the design of this lens also features eleven elements made from glasses with anomalous partial dispersion for the correction of chromatic aberrations. The universal capabilities of this lens are underlined by homogeneous imaging performance at all focal lengths and distance settings. Only one very light element is moved for focusing. A drive concept comprising a stepping motor and linear positioning developed especially for this lens enables very fast, almost-silent and extremely precise focusing. The length of the lens remains unchanged during focusing. The rectangular form of the lens hood supplied with the lens very effectively suppresses undesirable reflections and stray light. Robust and resilient construction, impermeable seals and AquaDura® coating of exposed glass surfaces make the lens ideal for use in even the toughest working conditions.
Page 2 of 4 I As at October 2015 I Specifications are subject to change without notice Leica Camera AG I Am Leitz-Park 5 I 35578 WETZLAR I GERMANY I Telephone +49(0)6441-2080-0 I Fax +49(0)6441-2080-333 I www.leica-camera.com
LEICA VARIO-ELMARIT-SL 24-90 mm f/2.8-4 ASPH. Technical Data.
VALENCIA Vario-Elmarit-SL 1:2,8-4 / 24-90mm ASPH.
MTF DIAGRAMS Objektentfernung unendlich
Stuible, 12.08.2015
Infinity (∞)
Brennweite: 24mm
Brennweite: 50mm
Focal length 24 mm
100
Aperture BlendeStop 2.8 2.8
[%]
Brennweite: 90mm
Focal length 50 mm
100
Focal length 90 mm
BlendeStop 3.63.6 Aperture
[%]
100
80
80
80
60
60
60
40
40
40
20
20
20
0
0
3
6
9
12
15
18
21
0
0
3
6
9
12
15
BlendeStop 5.6 5.6 Aperture
[%]
21
0
100
BlendeStop 5.65.6 Aperture
[%]
100
80
80
60
60
60
40
40
40
20
20
20
0
3
6
9
12
15
18
21
0
0
3
6
9
12
15
BlendeStop 8.0 8.0 Aperture
[%]
18
21
0
100
Blende 8.08.0 Aperture Stop
[%]
100
80
80
60
60
60
40
40
40
20
20
20
0
3
6
9
12
15
18
21
Y'[mm]
9
12
15
0
0
3
6
9
12
15
18
21
Y'[mm]
18
21
BlendeStop 5.6 5.6 Aperture
[%]
0
3
6
9
12
15
18
21
Y' [mm]
80
0
6
Y' [mm]
Y' [mm]
100
3
Y'[mm]
80
0
0
Y'[mm]
Y'[mm]
100
18
BlendeStop 4.0 4.0 Aperture
[%]
0
Blende 8.08.0 Aperture Stop
[%]
0
3
6
9
12
15
18
21
Y'[mm]
Sagittal structures Tangential structures
MTF GRAPHS
The MTF is shown in each case for the maximum aperture and the aperture values 5.6 and 8.0 for long focusing distances (infinity). The contrast is plotted for 5, 10, 20, 40 lines/mm for the height of the format for tangential (dashed line) and sagittal structures (continuous line) for white light. The plots for 5 and 10 lines/mm provide an impression of the contrast performance for coarser object structures and the 20 and 40 lines/mm plots document the resolving power for fine and finest object structures.
Page 3 of 4 I As at October 2015 I Specifications are subject to change without notice Leica Camera AG I Am Leitz-Park 5 I 35578 WETZLAR I GERMANY I Telephone +49(0)6441-2080-0 I Fax +49(0)6441-2080-333 I www.leica-camera.com
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LEICA VARIO-ELMARIT-SL 24-90 mm f/2.8-4 ASPH. Technical Data. - MTF DIAGRAMS Für Objektentfernung 1.0m: Close distance (1 m)
Brennweite: 24mm
Brennweite: 50mm
Focal length 24 mm 100
BlendeStop 2.8 2.8 Aperture
[%]
Brennweite: 90mm
Focal length 50 mm
100
Focal length 90 mm
Blende 3.63.6 Aperture Stop
[%]
100
80
80
80
60
60
60
40
40
40
20
20
20
0
0
3
6
9
12
15
18
21
0
0 0
3
6
9
12
15
Y'[mm]
100
21
100
Blende 5.65.6 Aperture Stop
[%]
100
80
80
60
60
60
40
40
40
20
20
20
0
3
6
9
12
15
18
21
0
0 0
3
6
9
12
15
Y' [mm]
100
18
21
100
Blende 8.08.0 Aperture Stop
[%]
100
80
60
60
14.277880 12.9798 11.6818 60 10.3838
40
40
9.08586 7.7878840
20
20
0
3
6
9
12
15
18
21
Y'[mm]
9
12
15
0
5.19192 3.8939420 2.59596 1.29798 0 0
3
6
9
12
15
18
21
Y'[mm]
18
21
BlendeStop 5.6 5.6 Aperture
[%]
0
3
6
9
12
15
18
21
Y' [mm]
80
0
6
Y' [mm]
BlendeStop 8.0 8.0 Aperture
[%]
3
Y'[mm]
80
0
0
Y'[mm]
BlendeStop 5.6 5.6 Aperture
[%]
18
BlendeStop 4.0 4.0 Aperture
[%]
BlendeStop 8.0 8.0 Aperture
[%]
0
3
6
9
12
15
18
21
Y'[mm]
Sagittal structures Tangential structures
MTF GRAPHS
The MTF is shown in each case for the maximum aperture and the aperture values 5.6 and 8.0 for the close distance setting. The contrast is plotted for 5, 10, 20, 40 lines/mm for the height of the format for tangential (dashed line) and sagittal structures (continuous line) for white light. The plots for 5 and 10 lines/mm provide an impression of the contrast performance for coarser object structures and the 20 and 40 lines/mm plots document the resolving power for fine and finest object structures.
Page 4 of 4 I As at October 2015 I Specifications are subject to change without notice Leica Camera AG I Am Leitz-Park 5 I 35578 WETZLAR I GERMANY I Telephone +49(0)6441-2080-0 I Fax +49(0)6441-2080-333 I www.leica-camera.com
