<ul> <li>Front side - M27x0.75 female thread</li> <li>Rear side - M30x0.75 male thread</li> <li>Thickness - 4.5 mm</li> <li>Weight - 2 g</li> </ul> <p>This adapter allows using microscope objectives with M27x0.75 thread mount on microscopes with M30x0.75 thread mount.</p> <p>Shoulderless design allows preserving original parfocal height.</p> <p>Made of anodized aluminium.</p> <p>For sale is the adapter only. Objective is pictured for illustration purposes.</p>