Autocollimator Upgrade: Adapting a Right Angle Eye Piece

In an effort to make my Hilger-Watts Autocollimator much more useful, I made an adapter to mount a Nikon right angle eye piece over the existing eye piece so that I would not have to kneel down to look through the eye piece for each measurement. Turned from a piece of brass on my metal lathe, this simple adapter will make this precision tool much more user friendly!

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