<ul class="tabs"> <li><a class="active" href="#tab1">Description</a></li> <li><a href="#tab2">Tech Specs</a></li> </ul> <ul class="tabs-content"> <li id="tab1" class="active"> <p>This new wide-angle lens is fast, compact and delivers exceptional performance. Its outstanding speed makes it particularly versatile and delivers brilliant imaging results even in difficult lighting conditions. Its full-metal lens hood with a screw mount protects the optical system against undesirable stray light and flare. A screw-in protector ring is provided with the lens to protect the filter thread of the lens when the hood is not in use. </p> <p>At its maximum aperture, the Summicron-M 28mm f/2 ASPH already delivers impressively rich contrast, differentiated reproduction of even the finest structures, a soft and smooth bokeh and extremely high resolution. This is due to its recalculated optical design, which almost completely eliminates the astigmatic differences in the image field caused by the cover glass of the sensor to ensure excellent image quality from corner to corner in every picture.</p> <ul> <li><span style="line-height: 1.5;">Compact and versatile, ideal for reportage photography</span></li> <li><span style="line-height: 1.5;">Excellent image quality from corner to corner of every picture</span></li> <li><span style="line-height: 1.5;">Outstanding speed and wide-open sharpness delivers brilliant images even in difficult lighting situations</span></li> </ul> </li> <li id="tab2"> <table width="100%"> <tbody> <tr> <td width="50%"><strong> Angle of view (diagonal, horizontal, vertical)</strong></td> <td>74°, 65°, 46°</td> </tr> <tr> <td><strong>Optical design</strong></td> <td><span></span></td> </tr> <tr> <td><strong><span>Number of lenses/groups</span></strong></td> <td><span><span>9 / 6</span></span></td> </tr> <tr> <td><strong><span><span>Focal length</span></span></strong></td> <td><span><span><span>28 mm</span></span></span></td> </tr> <tr> <td><strong><span><span><span>Position of entrance pupil</span></span></span></strong></td> <td><span><span><span><span>23.3 mm </span></span></span></span></td> </tr> <tr> <td><strong><span><span><span>Focusing range</span></span></span></strong></td> <td><span>0.7 m to infinity</span></td> </tr> <tr> <td><strong><span><span><span><strong><span><span><span>Distance setting</span></span></span></strong></span></span></span></strong></td> <td><span></span></td> </tr> <tr> <td><strong><span><span><span><span>Scales</span></span></span></span></strong></td> <td><span>Combined meter/feet graduation</span></td> </tr> <tr> <td><strong><span><span><span><span>Smallest object field</span></span></span></span></strong></td> <td><span>528 x 789 mm</span></td> </tr> <tr> <td><strong><span><span><span><span><span>Largest reproduction ratio</span></span></span></span></span></strong></td> <td><span><span>1:21</span></span></td> </tr> <tr> <td><strong><span><span><span><span><span>Aperture</span></span></span></span></span></strong></td> <td><span></span></td> </tr> <tr> <td><strong>Setting/Function<span><span><span><span><span></span></span></span></span></span></strong></td> <td>With click-stops, half values available, manual diaphragm</td> </tr> <tr> <td><strong>Lowest value<span><span><span><span><span></span></span></span></span></span></strong></td> <td>16</td> </tr> <tr> <td><strong>Bayonet<span><span><span><span><span></span></span></span></span></span></strong></td> <td>Leica M quick-change bayonet with 6 bit lens identification bar code for digital M models</td> </tr> <tr> <td><strong>Filter mount</strong></td> <td>Internal thread for screw-on filters size E46</td> </tr> <tr> <td><strong><span>Lens hood</span></strong></td> <td>Available, screwable (supplied)</td> </tr> <tr> <td><strong><span>Dimension and weight</span><span>: </span></strong></td> <td></td> </tr> <tr> <td><strong><span><span>Length</span></span></strong></td> <td>41.4</td> </tr> <tr> <td> <strong><span><span>Largest </span></span></strong><b>diameter</b> </td> <td>approx. 53 mm</td> </tr> <tr> <td><strong><span><span><span>Weight</span></span></span></strong></td> <td>approx. 257 g</td> </tr> </tbody> </table> </li> </ul>