Details
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Information:
The Series 4000 4-element; multi-coated f/6.3 Focal Reducer threads on to the rear cell of any SCT with standard threads. e.g Meade LX200; Celestron Nexstar etc. It reduces the telescope's focal ratio by a factor of 0.63; so f/10 telescopes are converted to f/6.3; f/6.3 telescopes to f/4 and f8 RCX's to f5. The 41mm-diameter lens system helps to flatten the field; significantly improving edge-of-field corrections. |
Specifications:
The Series 4000 f/6.3 focal reducer enables a reduction in CCD and photographic exposure times by about 50%; while producing an actual field diameter of 38mm (1.5") at the chip/film plane. Brand new in bolt-style case. |
Additional Information
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