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Meade Series 4000 f/6.3 Focal Reducer

Threaded on to the telescope’s rear cell in front of the #62 T-Adapter or Off-Axis Guider, and the camera body, the f/6.3 Focal Reducer reduces the main telescope’s focal ratio by a factor of 0.63 (e.g. from f/10 to f/6.3), thereby reducing photographic exposure times by about 50%.

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