90 mm Adjustable Rings With Delrin Tipped Thumb Screws [ADM-R90

O'Telescope is Canada's top-tied Telescopes and Accessories store.
ADM Accessories: Pair of 90 mm finderscope rings with 3/8 aluminum screws with large 1/4 Delrin Tips for adjusting. Thoroughly made of stainless steel and anodized aluminum for maximum longevity. An ideal way to mount a guidescope to large Dobsonian rocker boxes or existing optical tube rings. Each ring features three 1/4x20 TPI holes. Center hole is fixed to a 1.25 flat base while the other two holes are each 1/2 from the center and 1 apart from each other. Fits V Series dovetail bars. Includes two 90mm (ID) adjustable guidescope rings with large delrin tipped thumb screws. Adjustable from 60mm – 80mm. Wt. as shown 10 oz.

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