Protractors Transmission Reticles

Reticles are clear glass discs marked with scales or patterns, which fit into microscope eyepieces at the internal real image plane. This is the intermediate image of the specimen/object under inspection produced by the objective lens of the microscope. By placing the reticle at this position, the scale/pattern is superimposed on the image and both are in simultaneous focus. These reticles are all designed for an objective power of 1X.

Reticles have 1 degree increments with each 10 degree increments labeled; they contain a half-hatch mark every 5 degrees. The total pattern is over a 10mm diameter.