Microscope Eyepiece Reticules (Graticules) 

NG5 Fairs

Eyepiece Reticle designed to extend the sizing range of the Globes/Circles reticles

Technical Specification

Designed to extend the sizing range of globe and circle reticles. Example: Used in conjunction with NG2 the overall size range = 128:1. The circles increase by root 2. Note that both reticles would have to be used with the same microscope, eyepiece and objective. Reference: G.L Fairs Chem Ind. 1943 Vol. 62. Pp 374-378. “The Use Of The Microscope In Particle Size Analysis.”

Glass Type and Thickness
Soda Lime 1.5mm thick

Diameter Tolerance
+0/-0.1mm

Orientation
Correct reading through glass