With the addition of the erecting prism adapter, the normally inverted image produced by the standard Gaertner measuring microscopes is 're-inverted' by use of a special roof prism. The M193 adapter also inclines the ocular at an angle of 60 degrees. The Gaertner catalog number is M193.

The adapter also increases the effective optical tube length of the microscope 26mm. The effect of this increase is to slightly increase the magnification while slightly decreasing the working distance and the field of view. The erecting prism replaces the standard eyepiece tube adapter. These normally have their own spider cross lines installed, however we often get them in with missing cross lines. These are offered at a reduced price. Glass reticles or scales may be installed by the user.

These adapters are in very fine condition cosmetically, and in perfect optical condition. They do not include the cross line reticle! We also have some available with the cross line - please see our other listings.

Photo set 1392

Shipping Policies