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Leica TRI-ELMAR-M 16-18-21mm f/4 ASPH

Leica TRI-ELMAR-M 16-18-21mm f/4 ASPH lens
Leica TRI-ELMAR-M 16-18-21mm f/4 ASPH lensLeica TRI-ELMAR-M 16-18-21mm f/4 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.

 

Internal Focusing

Internally focusing lenses don't change their size while setting focus.

 

The front lens is fixed

The fixed front lens is not rotating during zoom and/or focusing. This allows the photographer to use petal shaped lens hood. Fixed front lenses also make the use of polarization filters a lot easier.

 

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.

With its impressive angle of view of 107°, this new TRI-ELMAR conquers 16 mm super wide-angle photography in perfect Leica M style. Due to the minimal distortion and barely perceptible field curvature, it can be recommended for highly demanding architecture photography even at the 16 mm setting. Used on the digital M8, it produces the image effect of a 21 - 28 mm lens, still enabling extreme wide-angle views. The ultra compact shape is achieved by two aspherical elements. A new design of the interior focusing significantly enhances the quality in the close-focus range through an adaption of the floating element principle. Brilliant field depth can therefore be used from a distance of 0.33 m for hyperfocal photography. Save money by buying the lens in a set together with the Universal Wide-angle Viewfinder M.

Leica TRI-ELMAR-M 16-18-21mm f/4 ASPH Specification

Available mount(s) Leica M
Application(s) Landscape, Interiors, Architecture
Category(s) Wide angle zoom
Multiplier
Stabilizer no
Focal length 16 - 21 mm (1.3× zoom)
Lens construction 10 elements in 7 groups
Angle of view 35mm: 107-92°
digital: 90-75°
Number of blades N/A
Maximum aperture wide: f/4 tele: f/4
Minimum aperture wide: f/22 tele: N/A
Minimum focusing distance 50 cm
Magnification 0.03×
Filter size 67 mm
Size ∅ 54 × 62 mm
Weight 335 g
Notes "digital" angle of view for 1,3x crop factor (Leica M8)
AF speed N/A
AF sound
Internal focusing yes
Internal zoom N/A
Fix front lens yes
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 included
Tripod adapter N/A
Leica TRI-ELMAR-M 16-18-21mm f/4 ASPH Specification

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