<ul> <li>Front side - M63x1 female thread</li> <li>Rear side - M48x0.75 male thread</li> </ul> <p>Made of high quality aluminium alloy.</p> <p>This adapter allows using cameras with M48x0.75 thread (directly or via extra adapter) on telescopes with M63x1 thread (like TS-Optics 71SDQ).</p> <p>This adapter also has inner female M48x0.75 thread to put a filter there if necessary.</p>