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Home Eyepieces Baader Eyepieces Baader Hyperion Eyepieces Baader Hyperion Fine Tuning Ring 28mm
With the addition of the Baader Fine tuning Rings, each Hyperion eyepiece can function as four eyepieces. Available in 14mm and 28mm lengths finetuning rings are 2" OD and threaded M48 (filter thread) on each end, so they can be installed between the Hyperion's removable front negative element and main body.
The added spacing decreases the focal lengths (increases magnification). Fine tuning rings are made to match the Hyperion finish and are fully internally sharp v-threaded and blackened to eliminate stray light reflections from the internal surfaces and retain high contrast. Please Note: Removal and installation of the front negative element should be done in a clean environment to prevent dust or other contamination from the internal lens elements (which can be difficult to clean). The 24mm Hyperion is fixed focal length and not able to make use of the Fine tuning Rings.