Leica Noctilux-M 75mm 1.25 User Manual
LEICA NOCTILUX-M 75 mm f/1.25 ASPH.
Technical Data.
Illustration 1:1
Lens Leica Noctilux-M 75 mm f/1.25 ASPH.
Order no. 11 676
Angle view
(diagonal, horizontal, vertical)
Optical design Number of elements/groups: 9/6
Distance setting Scala: combined meter-/feet-increments
Diaphragm Setting/type: preset, with click-stops, half values available
Bayonet Leica M quick-change bayonet
Filter thread E67
Lens hood Integrated
Dimensions and weight Lenghth: approx. 91/102 mm (without/with extended lens hood)
For 35 mm (24 x 36 mm): approx. 32°/27°/18°,
for M8: approx. 24°/20°/14°
Entrance pupil for bayonet: 26.9 mm
Focusing range: 0.85 m to infinity
Smallest object field: for 35 mm: 212 x 318 mm; for M8: 159 x 238 mm
Highest reproduction ratio: 1:8.8
Smallest aperture: f/16
Number of aperture blades: 11
Diameter: approx. 74 mm
Weight: approx. 1055 g
Leica Camera AG
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
I
Page 1 of 8 I As at April 2017 I Specifications are subject to change without notice
LEICA NOCTILUX-M 75 mm f/1.25 ASPH.
ENGINEERING DRAWING LENS SHAPE
ASPH.
Floating Element
ASPH.
Illustrations 1:1
The Leica Noctilux-M 75 mm f/1.25 ASPH. is a unique, high-performance lens that enables photographers to lend
their images an extraordinary visual signature. The combination of extraordinarily shallow depth of field at maximum
aperture and outstanding imaging performance from infinity to its closest focusing distance, opens up entirely new
possibilities for creative photography.
To achieve this, the reduction of the dimensions and weight of the lens presented entirely new challenges in the
fields of optical design, construction and manufacturing.
– Very high quality imaging performance from corner to corner of the image frame through correction of all aber-
rations. This applies in particular to the closer focusing range (portrait distances), and was achieved by the use
of a floating element.
– Extremely shallow depth of focus at maximum aperture (only half that of the Leica Noctilux-M 50 mm f/0.95
ASPH.) enables isolation of subject details with a ‘macro-feel’.
– Imaging performance (stopped down to f/2) exceeds that of the Leica APO-Summicron-M 75 mm f/2 ASPH.
– Round aperture creates extremely harmonious bokeh (11 iris blades).
– Despite a complex focusing system (floating element), the highest precision ensures consistency throughout
the entire focusing range.
– Minimal reflections and stray light thanks to high-quality lens coatings.
– Integrated, twist-out-and-lock lens hood.
Leica Camera AG
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
I
Page 2 of 8 I As at April 2017 I Specifications are subject to change without notice
MTF-DIAGRAMS
NOCTILUX-M 1:1.25/75mm ASPH. Brennweite 75 mm
0 3 6 9 12 15 18 21
Y'[mm]
0
20
40
60
80
100
[%]
Vignettierung
1.25
2.0
5.6
0 3 6 9 12 15 18 21
Y'[mm]
-5
-4
-3
-2
-1
0
1
2
3
4
5
[%]
Relative Verzeichnung
0 3 6 9 12 15 18 21
Y'[mm]
0
20
40
60
80
100
[%]
Blende 1.25
NOCTILUX-M 1:1.25/75mm ASPH. Brennweite 75 mm
0 3 6 9 12 15 18 21
Y' [mm]
0
20
40
60
80
100
[%]
Blende 2.0
0 3 6 9 12 15 18 21
Y'[mm]
0
20
40
60
80
100
[%]
Vignettierung
1.25
2.0
5.6
0 3 6 9 12 15 18 21
Y'[mm]
-5
-4
-3
-2
-1
0
1
2
3
4
5
[%]
Relative Verzeichnung
0 3 6 9 12 15 18
X'[mm]
0
3
6
9
12
Y'[mm]
Effektive Verzeichnung
LEICA NOCTILUX-M 75 mm f/1.25 ASPH.
[%]
100
80
60
40
20
0
0 3 6 9 12 15 18 21
[%]
100
80
60
40
20
0
0 3 6 9 12 15 18 21
Aperture Stop 1.25
Blende 1.25
Aperture Stop 2.0
Blende 2.0
Y'[mm]
Y' [mm]
Aperture Stop 5.6
[%]
Blende 5.6
100
80
60
40
20
0
0 3 6 9 12 15 18 21
Sagittal structures
Tangential structures
Y'[mm]
MTF GRAPHS The MTF is shown in each case for the maximum aperture 1.25 and the aperture values 2.0 and 5.6 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.
Leica Camera AG
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
I
Page 3 of 8 I As at April 2017 I Specifications are subject to change without notice
Loading...