This is a high quality M42-MAF Lens to Mount Adapter. You can use this camera adapter ring in conjunction with the camera adapters to complete the connection to a digital camera supporting a filter thread.<!--Features --><p>FEATURES</p><ul class="p_f"><li>New and high quality</li><li>Although the lens will fit physically, automatic diaphragm, auto-focusing, or any other functions will not operate correctly while using this adapter</li><li>It is able to focus to infinity</li><li>Made of aluminum (not plastic)</li></ul><!--Specifications --><p>Specifications</p><table width="100%" border="0" cellpadding="0" cellspacing="0"><tbody><tr><td width="141">Dimensions</td><td width="365">0.16 x 2.50 in (H x R)</td></tr><tr><td>Weight</td><td>0.28 oz</td></tr><tr><td>Color</td><td>Black</td></tr></tbody></table><!--Package Includes --><p>Package Includes</p><ul><li>1 x M42-MAF Lens to Mount Adapter</li></ul><!--Extra Info --><!--produts_compatibility -->