Leica Elmarit-M 28mm f/2.8 ASPH Handleiding

Leica Lens Elmarit-M 28mm f/2.8 ASPH

Lees hieronder de 📖 handleiding in het Nederlandse voor Leica Elmarit-M 28mm f/2.8 ASPH (7 pagina's) in de categorie Lens. Deze handleiding was nuttig voor 96 personen en werd door 2 gebruikers gemiddeld met 4.5 sterren beoordeeld

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Pagina 1/7

Page 1 of 7

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 ELMARIT-M 28 mm f/2.8 ASPH.

Technical Data.

Lens Leica Elmarit-M 28 mm f/2.8 ASPH.

Order number 11 677

Angle view

(diagonal, horizontal, vertical)

For 35 mm (24 x 36 mm): 75°/65°/46°;

for M8 (18 x 27 mm): 60°/51°/36°, corresponds to a focal length of approx. 37 mm with 35 mm-format

Optical design Number of elements/groups: 8/6

Entrance pupil for bayonet: 11,8 mm

Focusing range: 0,7 m to inﬁnity

Distance setting Scala: combined meter-/feet-increments

Smallest object ﬁeld: for 35 mm: 533 x 800 mm, for M8: 400 x 600 mm

Highest reproduction ratio: 1:22,2

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

Smallest aperture: f/22

Number of aperture blades: 10

Bayonet Leica M quick-change bayonet

Filter thread E39

Lens hood Available, screwable (supplied)

Dimensions and weight Length: approx. 30,7/49,4 mm (without/with lens hood)

Largest diameter without lens hood: approx. 52 mm

Weight: approx. 175 g/211 g (without/with lens hood and covers)

Illustrations 1:1

Page 2 of 7

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 ELMARIT-M 28 mm f/2.8 ASPH.

Aspherical lens

ENGINEERING DRAWING LENS SHAPE

This new high-speed lens is the most compact of Leica M lenses. By using an aspherical element it was possible

to attain top imaging performance with a weight of only 175 grams. This lens is practically distortion-free in the

whole focus range from 0.7 m to infinity and only extends slightly into the viewfinder field of M cameras.

Page 3 of 7

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 ELMARIT-M 28 mm f/2.8 ASPH.

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.

MTF DIAGRAMS

0 3 6 9 12 15 18 21

Y'[mm]

100

[%] Blende 2.8

0 3 6 9 12 15 18 21

100

Blende 8.0

[%]

0 3 6 9 12 15 18 21

Y' [mm]

100

[%] Blende 5.6

Sagittal structures

Tangential structures

Aperture Stop 2.8 Aperture Stop 8.0

Aperture Stop 5.6

Product specificaties

Merk:	Leica
Categorie:	Lens
Model:	Elmarit-M 28mm f/2.8 ASPH
Kleur van het product:	Zwart
Gewicht:	175 g
Diameter:	52 mm
Vaste focale lengte:	25 mm
Lensstructuur (elementen/groepen):	8/6
Lengte:	30.7 mm
Dichtstbijzijnde focus afstand:	0.7 m
Maximum aperture number:	22
Minimum aperture number:	2.8
Component voor:	MILC
Lens mount interface:	Leica M
Aantal diafragma bladen:	10