AO-8 on ST-10XE

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AO-8 on ST-10XE: This shows the AO-8 installed on the ST-10XE camera and telescope. A slightly shorter spacer was used between the AO-8 and the f6.3 focal reducer, but the spacing in this photo is longer than optimal and the resulting focal length is closer to f5.5.

Date: June 2010

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