<ul> <li>Front side - 82.5 mm inner diameter</li> <li>Rear side - M65x1 male thread</li> <li>Weight - 80 g</li> </ul> <p>This adapter allows using projection lenses that have about 82.5 mm barrel diameter on Chinese focusing helicoids with M65x1 screw thread. Such setup is great for portrait and macro shots.</p> <p>The adapter is secured by 3 screws. Intermediate flat tension spring prevents a lens body damage.</p> <p>Made of anodized light alloy.</p> <p>Known compatible lenses:</p> <ul> <li>LOMO 35KP-1.8/100</li> </ul>