Specification

ManualsBrandsLeica Manuals35mm LensesSummicron-M 28mm f/2 ASPH. Lens

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As at January 2016

Speciﬁcations are subject to change without notice

Leica Camera AG

Am Leitz-Park 5

35578 WETZLAR

GERMANY

Telephone +49(0)6441-2080-0

Fax +49(0)6441-2080-333

www.leica-camera.com

LEICA SUMMICRON-M 28 mm f/2 ASPH.

Technical Data.

Lens Leica Summicron-M 28 mm f/2 ASPH.

Order number 11 67 2

Angle view

(diagonal, horizontal, vertical)

For 35 mm (24 x 36 mm): ca. 74°/65°/46°;

for M8 (18 x 27 mm): 60°/51/35°

Optical design Number of elements/groups: 9/6

Entrance pupil for bayonet: 23,3 mm

Focusing range: 0,7 m to inﬁnity

Distance setting Scala: combined meter-/feet-increments

Smallest object ﬁeld: for 35 mm: 526 x 789 mm, for M8: 395 x 592 mm

Highest reproduction ratio: 1:21,9

Diaphragm Setting/type: preset, with click-stops, half values available

Smallest aperture: f/16

Number of aperture blades: 10

Bayonet Leica M quick-change bayonet

Filter thread E46

Lens hood Available, screwable (supplied)

Dimensions and weight Length: approx. 41,4/54 mm (without/with lens hood)

Largest diameter without lens hood: approx. 53 mm

Weight: approx. 257 g/288,9 g (without/with lens hood and covers)

Illustrations 1:1

Summary of content (7 pages)

PAGE 1
LEICA SUMMICRON-M 28 mm f/2 ASPH. Technical Data. Illustrations 1:1 Lens Leica Summicron-M 28 mm f/2 ASPH. Order number 11 672 Angle view (diagonal, horizontal, vertical) For 35 mm (24 x 36 mm): ca.
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LEICA SUMMICRON-M 28 mm f/2 ASPH. ENGINEERING DRAWING LENS SHAPE Aspherical lens Illustrations 1:1 This fast wide-angle lens is especially compact and its imaging performance is outstanding at f/2. The rendition of the finest details results in pictures with an extraordinary depth effect. Even in critical lighting conditions, for example in backlit situations, distracting reflections and flare are largely eliminated.
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80 2 1 60 0 LEICA SUMMICRON-M 2840 mm f/2 ASPH. -1 -2 20 -3 -4 0 MTF DIAGRAMS Summicron-M 1:2,0/28mm ASPH. 100 Aperture BlendeStop 2.0 2 [%] 0 3 6 9 12 15 Brennweite 28 mm 18 -5 21 0 3 Vignettierung Aperture BlendeStop 5.62.8 [%] [%] 100 100 E Y'[mm] 80 80 Summicron-M 1:2,0/28mm ASPH. 80 Blende 2.0 60 [%] 100 40 80 40 40 80 20 60 20 20 60 0 40 0 3 6 9 12 15 18 21 5.6 2.8 2.0 Brennweite 28 mm Vignettierung 60 [%] 60 100 5.6 2.8 2.
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9 80 60 60 2.8 2.0 LEICA SUMMICRON-M 28-2mm f/2 ASPH. 40 40 -1 20 20 -3 0 0 Distortion 12 15 18 21 -4 0 03 36 912 12 15 15 18 18 21 21 -5 0 3 6 9 12 15 Y' [mm] Y'[mm] 18 21 Y'[mm] Relative Distortion Blende 5.
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LEICA SUMMICRON-M 28 mm f/2 ASPH. Depth of field table Magnification 2.8 4 5.6 0.7 0.666 - 0.738 0.656 - 0.751 0.638 - 0.776 0.617 - 0.812 0.588 - 0.872 0.555 - 0.963 0.508 - 1.169 1/21.9 0.8 0.755 - 0.851 0.741 - 0.869 0.719 - 0.903 0.691 - 0.953 0.654 - 1.040 0.613 - 1.174 0.556 - 1.505 1/25.4 8 11 16 1 0.929 - 1.083 0.908 - 1.115 0.874 - 1.172 0.832 - 1.260 0.777 - 1.421 0.718 - 1.695 0.639 - 2.515 1/32.4 1.2 1.098 - 1.324 1.067 - 1.372 1.020 - 1.463 0.888 - 1.
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Distance Setting [m] 0.7 0.8 1 1.2 1.5 2 3 5 10 ∞ LEICA SUMMICRON-M 28 mm f/2 ASPH. 0 1 2 3 4 5 6 7 8 9 10 6 7 8 9 10 6 7 8 9 10 6 7 8 9 10 Depth of Field [m] Distance Setting [m] Aperture Stop 4 0.7 0.8 1 1.2 1.5 2 3 5 10 ∞ 0 1 2 3 4 5 Depth of Field [m] Distance Setting [m] Aperture Stop 5.6 0.7 0.8 1 1.2 1.5 2 3 5 10 ∞ 0 1 2 3 4 5 Depth of Field [m] Distance Setting [m] Aperture Stop 8 0.7 0.8 1 1.2 1.
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Distance Setting [m] 0.7 0.8 1 1.2 1.5 2 3 5 10 ∞ LEICA SUMMICRON-M 28 mm f/2 ASPH. 0 1 2 3 4 5 6 7 8 9 10 6 7 8 9 10 6 7 8 9 10 Depth of Field [m] Distance Setting [m] Aperture Stop 11 0.7 0.8 1 1.2 1.5 2 3 5 10 ∞ 0 1 2 3 4 5 Depth of Field [m] Distance Setting [m] Aperture Stop 16 0.7 0.8 1 1.2 1.