<ul class="tabs">
<li><a class="active" href="#tab1">Description</a></li>
<li><a href="#tab2">Features</a></li>
<li><a href="#tab3">Tech Specs</a></li>
</ul>
<ul class="tabs-content">
<li id="tab1" class="active">
<br>To meet the requirements of digital photography, the Leica Super-Elmar-M 21mm f/3.4 ASPH is a benchmark in all optical performance characteristics. The stray light optimization was implemented on a very high level, allowing for backlit shots with crystal clear contrast. The design of the metal lens hood matches the appearance of the current wide-angle lenses of the Leica M system. This lens hood is also compatible with the Leica Super Elmar-M 24 mm f/3.8 ASPH and the Leica Summilux-M 35mm/1.4. With the Leica M8 and M8.2, the Leica Super-Elmar-M 21mm/3.4 ASPH has an equivalent focal length of 28 mm making it a practical standard wide-angle lens for use with the Leica M8 and M8.2.</li>
<li id="tab2">
<ul>
<li>Wide angle view for architecture, street and landscape photography</li>
<li>Excellent image quality at full aperture. Distortion, vignetting and chromatic aberration have been reduced to a minimum</li>
<li>Convenient to carry because of its compact size</li>
<li>Flare resistant design allows for images under extreme backlight conditions</li>
<li>The f/3.4 lens speed in combination with the short focal length allows sharp images even in available light situations</li>
<li>Metal lens hood is included in the scope of delivery</li>
<li>Can be used not only with digital M-cameras but with all Leica analog M-cameras since 1954 </li>
<li>Made in Germany</li>
</ul>
</li>
<li id="tab3">
<table width="100%">
<tbody>
<tr>
<td width="50%"> <b>Angle of view (diagonal, horizontal, vertical)</b> </td>
<td></td>
</tr>
<tr>
<td><b>For 35mm format (24x36mm)</b></td>
<td>91°, 80°, 59°</td>
</tr>
<tr>
<td><b><b>For M8/M8.2 (18x27mm)</b></b></td>
<td>74°, 64°, 46°</td>
</tr>
<tr>
<td><b><b>Optical design</b></b></td>
<td></td>
</tr>
<tr>
<td><b><b>Number of elements / groups</b></b></td>
<td>8 / 7</td>
</tr>
<tr>
<td><b><b><b style="line-height: 1.5;">Focal length</b></b></b></td>
<td>21 mm</td>
</tr>
<tr>
<td><b><b><b>Entrance pupil</b></b></b></td>
<td><b><b><span style="font-weight: normal;">15.6 mm (related to the apex of the first lens surface in light direction)</span></b></b></td>
</tr>
<tr>
<td><b><b><b>Focusing range</b></b></b></td>
<td>0.7 m (2.3 ft) to Infinity </td>
</tr>
<tr>
<td><b><b><b><b>Distance setting</b></b></b></b></td>
<td></td>
</tr>
<tr>
<td><b><b><b><b>Scale</b></b></b></b></td>
<td>combined meter/feet-increments</td>
</tr>
<tr>
<td><b><b><b><b>Smallest object field</b></b></b></b></td>
<td>
<p>706 mm x 1059 mm (35mm format)</p>
<p>530 mm x 795 mm (for M8/M8.2)</p>
</td>
</tr>
<tr>
<td><b><b><b><b><b style="line-height: 1.5;">Highest reproduction ratio</b></b></b></b></b></td>
<td>
<p><span style="line-height: 21px;">1:29.4</span></p>
</td>
</tr>
<tr>
<td><b><b><b><b><b>Aperture</b></b></b></b></b></td>
<td>
<p> </p>
</td>
</tr>
<tr>
<td><b><b><b><b><b><b>Setting / Type</b></b></b></b></b></b></td>
<td>Preset, with clickstops (including half values), manual diaphragm</td>
</tr>
<tr>
<td><b><b><b><b><b><b style="line-height: 1.5;">Smallest aperture</b></b></b></b></b></b></td>
<td> f/16</td>
</tr>
<tr>
<td><b><b><b><b><b><b>Bayonet</b></b></b></b></b></b></td>
<td>Leica M quick-change bayonet with 6-bit bar coding for digtal Leica models</td>
</tr>
<tr>
<td><b><b><b><b><b><b><b style="line-height: 1.5;">Filter (type)</b></b></b></b></b></b></b></td>
<td>internal thread for screw-on filters size E 46</td>
</tr>
<tr>
<td><b><b><b><b><b><b><b>Lens hood</b></b></b></b></b></b></b></td>
<td>outer threading with stop for mounting the metal lens hood</td>
</tr>
<tr>
<td><b><b><b><b><b><b><b><b>Dimensions and weight</b></b></b></b></b></b></b></b></td>
<td></td>
</tr>
<tr>
<td><b><b><b><b><b><b><b><b>Length</b></b></b></b></b></b></b></b></td>
<td>43 mm (1.69 in) / 55 mm (2.17 in) (with/without lens hood attached)</td>
</tr>
<tr>
<td><b><b><b><b><b><b><b><b><b>Largest diameter</b></b></b></b></b></b></b></b></b></td>
<td>53 mm / 2.1 in</td>
</tr>
<tr>
<td><b><b><b><b><b><b><b><b><b>Weight</b></b></b></b></b></b></b></b></b></td>
<td>approx. 279 g / 9.84 oz</td>
</tr>
<tr>
<td><b><b><b><b><b><b><b><b><b><b>Accessories included</b></b></b></b></b></b></b></b></b></b></td>
<td>Metal lens hood, front cap for lens hood, rear cap, leather case, instruction manual</td>
</tr>
</tbody>
</table>
<b style="line-height: 1.5;"></b><br><br> <br><b></b>
</li>
</ul>
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