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Finder telescope

The JKT has a 20 cm refracting visual finder telescope with a focal ratio of f/16.25. Depending on the eyepiece used, fields of 10, 30 and 90 arcmin may be viewed visually from the observing floor. The finder is only used to diagnose gross pointing problems and for fun.

Tue Aug 15 16:42:46 BST 1995