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Hi 1ponders
Here are three pictures of treetops about 1km away. Taken with Celestron 102, 500mm stopped to f8.3 and Gstar camera. First – no reducer then home made 0.75 reducer and Mogg 0.6 reducer. Each needs different combination of T adaptors and the spacer rings to achieve focus. On my GS 150mm f5 Newtonian I cannot get focus with Mogg reducer at all.
Karl
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