Howie Glatter Holographic Cross-hair & Circle Attachment Useful for aligning the returning beam on collimator face. The Howie Glatter Holographic cross-hair and circle “scope” pattern spans 10 degrees. It has utility for non-Barlowed , conventional Newtonian primary collimation, where the primary is adjusted to return the reflected central laser beam back into the laser aperture of the collimator. The cross-hair intersection makes it easier to see when the return beam is centered on the collimator face. Availability NoticeHowie Glatter products are now being produced by Starlight Instruments, makers of the Feather Touch focuser. This item is expected to be available by the end of November, 2017. |
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