Astromania Universal Quick Release Finder Shoe Base for Schmidt Cassegrains and Other Telescope 130-400mm Diameter - for MQR III&IV/Witty One and V-Bracket - Black

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About This Aluminium Alloy Material: Made of anodizing aluminium; precision machined solid aluminum finder shoe base in matte black; for almost all viewfinder holders; for Witty 1 Tangent attachment etc; fits all lens barrel radii Easy to Install: Two large knurled thumbscrews makes it easy to install; bases feature two large thumbscrew locks to secure finder scope or reflex sight in place; even while wearing gloves; just put it on optical tube and tighten the screws Multi-Function: There are two elongated holes on this base and a single countersunk hole for screws up to M5 in the middle; two screws are on the side of base; the distance between the center points of the screw holes is 24 to 41 mm Well-Engineered In Shape: the base forms two linear constraints on each tube radius of 130-400mm in diameter; which gives maximum stability; the base also carries small guidance/CCD guider without any problem Practical Funcationality: Synta-style dovetail base; fit most bracket designs from Celestron Orion Sky-watcher Vixenn etc; compliable with finder scope; Laser Pointer bracket on telescopes Overview Brand : Astromania Eye Piece Lens Description : No Objective Lens Diameter : 130 Millimeters Telescope Mount Description : Telescope Mount Focus Type : Auto Focus Finderscope : Reflex Item Weight : 0.32 Ounces Compatible Devices : Telescopes Lens Coating Description : Fully Coated Focal Length Description : 400 millimeters Show more