M25x0.75 male to M28x0.75 female thread adapter, black

The M28x0.75 thread appears on a specific range of objectives from several Eastern European and Soviet manufacturers - notably some LOMO and MBI-series objectives - as well as certain industrial inspection objectives. This adapter lets you mount these objectives on any microscope with a standard M25x0.75 nosepiece.

The 7mm thickness places the objective slightly further from the stage, which is typically compatible with standard 160mm mechanical tube length objectives. If you're combining this with a long-working-distance or inverted microscope configuration, verify that the total optical path remains within spec before ordering.

• Front side - M28x0.75 female thread
• Rear side - M25x0.75 male thread
• Thickness - 7 mm
• Weight - 4 g
• Machined from high quality aluminium alloyWhy aluminium?.

For sale is the adapter only. The objective is pictured for illustration purposes.