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TRI-ELMAR-M 16-18-21 mm f/4 ASPH w/
Universal Wide-angle Viewfinder M
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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. |
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The LEICA UNIVERSAL WIDE-ANGLE VIEWFINDER M enables precise cropping of the subject with the LEICA TRI-ELMAR-M 16-18-21 mm f/4 ASPH. on the LEICA M7 and MP as well as the digital LEICA M8. For the LEICA M8, the focal length extension factor of 1.33x has to be considered, so in this case the bright-line frames for 21, 24 or 28 mm are set on the LEICA UNIVERSAL WIDE-ANGLE VIEWFINDER M. A parallax compensation dial enables adjustment of the frame to the focusing distance in five steps. |
| Angle of view (diagonal, horizontal, vertical) |
for 35 mm (24 x 36 mm): at 16 mm: 107°, 97°, 74° at 18 mm: 100°, 90°, 67° at 21 mm: 92°, 81°, 60° for digital (18 x 27 mm): at 16 mm: 90°, 80°, 59° at 18 mm: 84°, 74°, 53° at 21 mm: 75°, 65°, 46°, corresponds approx. to a focal length of 21/24/28 mm with 35 mm-format |
| Optical design | Number of elements / groups: 10 / 7 |
| Distance setting | Focusing range: 0.5 m to Infinity, range from 0.5 to 0.7 m separated
by index Scales: Combined meter/feet graduation with uniform grey figures below 0.7 m Smallest object field: for 35 mm: at 16 mm: 915 x 1373 mm, approx. 1:38 at 18 mm: 833 x 1250 mm, approx. 1:35 at 21 mm: 725 x 1087 mm, approx. 1:30 for digital: at 16 mm: 688 x 1032 mm, approx. 1:38 at 18 mm: 626 x 939 mm, approx. 1:35 at 21 mm: 545 x 817 mm, approx. 1:30 Highest reproduction ratio: at 0,7 m at 16 mm: 1:38 at 18 mm: 1:35 at 21 mm: 1:30 |
| Aperture | Setting / Type:
with clickstops (including half values) Smallest aperture: f/22 |
| Bayonet | Leica M quick-change bayonet with 6 bit lens identification bar code for digital M models |
| Filter (type) | Leica M quick-change bayonet with 6 bit lens identification bar code for digital M models |
| Lens hood | screw-on type lens hood (included in delivery), filter holder for E67 size filters optionally available |
| Dimensions and weight | Length: approx. 62/72 mm (with/without lens hood) |