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|Determine the Correct Reticle for Your Microscope • Calibrations Instructions
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Determine the Correct Reticle for Your Microscope
When ordering reticles, take into consideration only your total objective.
Use the following equation:
Desired value X Objective = Actual Value
.003" x 100 divisions = .300"/100 parts (KR-203)
Below are examples of the different values attained from a single reticle, when used with various objective settings:
Actual Value / Objective Setting = Value in System
Each reticle must be calibrated to each objective for precise measurements.
Procedure for Calibrating the Microscope
When both the stage and eyepiece scales are graduated in the same system, it is easiest to fine" the number of times an object is magnified by the objective and the field lens of the given eyepiece when focused in the plane of the eyepiece micrometer disc.
With this procedure, the size of the object observed is:
The size of any object in
the eyepiece scale
Actual total value in
It is easiest to calibrate when eyepiece and stage micrometer are both in English or both in Metric.
If you have one of each, convert one, before dividing.