A ALSTAR Universal Quick Release Finder Shoe Base for Schmidt Cassegrain Telescopes 130-400mm Diameter Aluminum Black

The A ALSTAR Universal Quick Release Finder Shoe Base is designed for telescopes without a built-in base, or for adding an additional base at a different position. Ensure your telescope's hole spacing range is 24-41mm for proper fit. This base is compatible with many standard finder brackets for 6x30 finders, 8x50 finders, and some red dot finders. Its variable radius and elongated holes allow it to fit almost all telescopes, including Schmidt-Cassegrains (SCT) with diameters from 130mm to 400mm.

Features:
* High-strength aluminum alloy construction with an anodizing process for durability. Precision machined solid aluminum in matte black.
* Easy installation with two large knurled thumbscrews for quick and secure attachment, even with gloves.
* Multi-functional design includes two elongated holes and a single countersunk hole for screws up to M5. Screw spacing on the side of the base is adjustable from 24mm to 41mm.
* Engineered for stability, providing two linear constraints for tube radii of 130mm to 400mm. Can also support small guidance or CCD guiders.
* Synta style dovetail base offers broad compatibility with most bracket designs from Celestron, Orion, Sky-Watcher, Vixen, and others, for finder scopes and laser pointer brackets.