Do you have a question about the ORION TELESCOPES & BINOCULARS Observer II 70mm Altazimuth Refractor and is the answer not in the manual?
objective lens diameter | 70 mm |
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effective focal length | 700 mm |
focal ratio | f/10 |
eyepiece focal length | 25 mm and 10 mm |
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eyepiece magnification with 25 mm eyepiece | 28x |
eyepiece magnification with 10 mm eyepiece | 70x |
focuser type | Rack-and-pinion |
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total instrument weight | 5 lbs. 8 oz. |
tripod material | Aluminum |