5mm Sq/ 10 Sq Div, 21mm Dia. Microscope Eyepiece Reticle

Product Details Designed for 1X Objective Power Indexed Grid Pattern 19 or 21mm Diameter 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. Squares are numbered 1-10 horizontally and lettered A-J vertically. Note: 19mm version is not numbered or lettered. Specifications Physical & Mechanical Properties Diameter (mm): 21.00 +0.0/-0.1 Overall Accuracy (μm): ±3 Thickness (mm): 1.50 ±0.1 Line Width (mm): 0.007 Centering (mm): 0.1 Line Width Tolerance (mm): ± 0.001 Regulatory Compliance RoHS 2015: Compliant × Certificate of Conformance: View × Reach 240: Compliant ×