<ul> <li>Front side - M28x0.75 female thread</li> <li>Rear side - M32x0.75 male thread</li> <li>Thickness - 4.5 mm</li> <li>Weight - 5 g</li> </ul> <p>This adapter allows using microscope objectives with M28x0.75 thread on microscopes with M32x0.75 thread.</p> <p>Shoulder-less design allows preserving original parfocal height.</p> <p>Made of durable bronze.</p> <p>For sale is the adapter only. Objective is pictured for illustration purposes.</p>