Leica APO-Summicron-SL 90mm 2.0 ASPH User Manual

APO-SUMMICRON-SL 90 f/2 ASPH.

APO-SUMMICRON-SL 1:2/90mm ASPH.

Asphärische Linse

Technical Data.

ENGINEERING DRAWING LENS SHAPE

Focus group

Aspherical lenses

Illustrations 1:2

Lens APO-Summicron-SL 90 f/2 ASPH.

Ordner no. 11 179

Field angle

(diagonal, horizontal, vertical) 27.3 / 22.9 / 15.4 °

Optical design

Number of lenses/groups 11/ 9

Number of aspherical lenses 1

Entrance pupil position before

bayonet level

Distance setting

Working range

Smallest object field 120 x 180 mm

Largest reproduction ratio 1:5

Aperture

Setting/function Electronically controlled aperture, set using turn/push wheel on camera, including half values

Aperture setting range 2 - 22

Lowest value 22

22.9 mm

0.6 m to infinity

Bayonet/sensor format Leica L bayonet, full-frame 35 mm format

Filter mount E67

Dimensions and weight

Length to bayonet mount 102 mm

Largest diameter 73 mm

Weight 700 g

Leica Camera AG

Am Leitz-Park 5 I 35578 WETZLAR I GERMANY I Telephone [phone] I Fax [phone] I www.leica-camera.com

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MTF DIAGRAMS

Entfernung unendlich

Entfernung 1m

APO-SUMMICRON-SL 90 f/2 ASPH.

Infinity (∞)

Close distance (1 m)

Aperture Stop 2.0 Aperture Stop 2.0

Aperture Stop 5.6 Aperture Stop 5.6

Aperture Stop 8.0 Aperture Stop 8.0

Sagittal structures

Tangential structures

MTF GRAPHS The MTF is shown in each case f or 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 structur es
(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.

Leica Camera AG

Am Leitz-Park 5 I 35578 WETZLAR I GERMANY I Telephone [phone] I Fax [phone] I www.leica-camera.com

I

Page 2 of 2 I As at October 2017 I Specications are subject to change without notice