By eHow Electronics Editor
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The Finderscope is a pointing tool in the Sky-Watcher SK909AZ3 refractor telescope. It looks like a mini telescope mounted on the main one. It can locate the objects in the sky, but it has only small magnifying power. The Finderscope is usually equipped with brightness control, azimuth adjustment and the altitude option. A SK909AZ3 refractor type telescope mostly uses the 6x30 Finderscope.