<ul> <li>Front side - M32x0.75 female thread</li> <li>Rear side - M52x0.75 male thread</li> <li>Distance between flanges - 10 mm</li> <li>Weight - 30 g</li> </ul> <p>This adapter allows using microscope objectives with M32x0.75 mount thread in front of lenses with M52x0.75 filter thread (for macrophotography purposes).</p> <p>Made of anodized aluminium.</p>