Thread: Celestron 11" f/2.2 Rowe-Ackermann Schmidt Astrograph (RASA) optical tube
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  #14  
Old 07-07-2014, 01:11 PM
raymo
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Location: margaret river, western australia
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It does tell you the back focus. It says the back focus from the camera
adaptor is 55mm.
raymo
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