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Leica ELMARIT-M 21mm f/2.8 ASPH

Leica ELMARIT-M 21mm f/2.8 ASPH lens
Leica ELMARIT-M 21mm f/2.8 ASPH lensLeica ELMARIT-M 21mm f/2.8 ASPH lens

Full frame sized image

Lenses that create APS-C sized image are designed for digital only. They cannot be used on cameras that have image sensor larger than the APS-C format. These lenses are not suitable for film cameras either.


No stepping motor AF

Lenses with stepping motor focusing mechanism are better for contrast based focusing, and are quiter and faster than traditionally focusing lenses.


Not stabilized

Image stabilization helps to reduce blur caused by hand shake, especially at high focal length or in low light situations. Image stabilization can give 1 to 3 stop advantage over none stabilized lens, based on the reciprocal rule.


Metal mount

Cheaper lenses are usually equipped with plastic mount, while more expensive, professional lenses have metal mount. In general, metal mounts are more durable, and a good thing to have when lenses are changed a lot. When a camera is used mainly with one lens, the material of the lens mount is not that important.


No drop-in filter support

Drop-in filters are used in those lenses where either the front lens is too large, or the field of view doesn't permit the use of traditional filters at the front of the lens. Usually bright tele and ultra-wide angle lenses support this filter type.

This compact ultra-wide-angle lens delivers outstanding detail and superb contrast even at full aperture. And the highest level of image quality is maintained even in the close-up range. Distortion is minimal, and negligible in photographic practice. With its ultra-wide imaging angle of 92°, it is ideally suited to landscape photography featuring dramatic effects. The foreground appears monumental, while the rapidly diminishing background creates a wide horizon. This focal length is also ideal for photojournalists who have to shoot right in the midst of the action. Since it delivers extremely sharp images and good depth of field at the widest aperture settings, very good picture results can be achieved in gruelling photojournalism assignments even without precise focusing. Combine this remarkable lens with the ultra-short shutter delay and aperture priority automation of the LEICA M7, and the result is the fastest camera system in existence.

Leica ELMARIT-M 21mm f/2.8 ASPH Specification

Available mount(s) Leica M
Application(s) Landscape, Interiors, Architecture
Category(s) Wide angle prime
Stabilizer no
Focal length 21 mm (prime)
Lens construction 9 elements in 7 groups
Angle of view 35mm: 92°
digital: N/A
Number of blades N/A
Maximum aperture f/2.8
Minimum aperture f/16
Minimum focusing distance 70 cm
Magnification 0.03×
Filter size 55 mm
Size ∅ 58 × 46 mm
Weight 300 g
AF speed N/A
AF sound
Internal focusing N/A
Internal zoom N/A
Fix front lens N/A
Mount type metal
Weather sealed N/A
Drop in filter no
Ultrasonic AF N/A
Stepping motor AF no
APS-C sized circle no
Low dispersion lens element N/A
Hard case N/A
Soft case N/A
Lens hood N/A
Tripod adapter N/A
Leica ELMARIT-M 21mm f/2.8 ASPH Specification

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