Angle Graduations for Eyepieces
Example of application:
As an eyepiece reticle for measuring tilts of plane mirrors in angular minutes.
Note: The angle scale for autocollimators (AK) is designed to indicate the tilt angle of the mirror to be measured directly. If corresponding retilces are used in testing telescopes (F) for determining the image angle value, the result must be multiplied by 2.
TRG = Total Range of Graduation
RFG = Range of Fine Graduation
SI = Smallest Interval