A torus optical (now OMI) 20" F/10 classical cassegrain with an F/4 focal reducer optical element. T
20" F/10 Classical Cassegrain

The scope

An early LIDAR prototype, a Torus CC05  variant classical cassegrain F/10 telescope with an F/4 focal reducer optical element. 

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Chinook Observatory

1235 Chocorua Road, Chocorua, New Hampshire 03817, United States

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