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Home Astro-Imaging T Thread & M48 Extensions Baader Variable Locking Sliding T2 Extension
This extension can accurately adjust the distance for critical focus when using off axis guiders, with a standard 1.25" bore it can also be used for focusing an eyepiece or camera equipped with a 1.25" nosepiece independently of the telescopes focuser. An additional 27.5mm of backfocus ir required and extends a further 10mm with the slider.
For 1.25" eyepieces or OAG cameras. 10mm focus travel Telescope side T-2 (M42x0.75 internal thread) Focus side 1¼" insertion sleeve for 1¼" eyepieces and T-2 male thread Optical path length 27.5mm to 38.5mm
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