Spindle Targets are special purpose mounted reticule targets. The reticule is a cross line on a Mirror. In Autocollimator application the mirror surface is used to measure angular tilts. In Alignment Telescope application the target cross line reticule is used for measurement of linear shifts.


Two adjustment screws are provided for linear movement of the Reticule to centre the reticule to the axis of rotation.

Three levelling screws are provided for tilting the mirror surface for aligning the surface perpendicular to the axis of rotation.