The alignment telescope is a precision instrument for the alignment of objects on a reference line defined by the line of sight,
or optical  axis of the telescope.

The optical axis runs concentrically with respect  to the tubular barrel to a very high degree of accuracy.  The mounting  of the
alignment telescope is accurately tied to its optical axis.  It is  specifically designed for aligning boreholes, bearings, optical
setups etc.  The alignment telescope has a wide range of focus from a few  inches to infinity.  The sturdy, stainless steel
construction will maintain specifications even in rough working conditions.  Optional autocollimation  using the alignment
telescope is accomplished by specifying an autocollimation eyepiece in place of the standard eyepiece.