Fits any diameter telescope tube except Schmidt Cassegrain telescope optical tubes; the base is made of diecast metal and features a large thumbscrew lock; includes two M4 screws The dovetail base accepts the bracket of all Astromania finder scopes and EZ Finder reflex sights. Drilled but not threaded to accommodate screws up to 4mm in diameter; center to center screw hole spacing on your telescope must be 20mm 0.79inch in order for this dovetail base to be compatible It is not suitable for SCT telescopes that require wider screw hole spacing. Enjoy both comfortable 90 degree viewing angle and upright with non-reversed image; integrated prism displays objects in similar way to that with binoculars or spotting scopes; makes using a star map much easier and observe near zenith at relaxed angle 9x50 finder scope with 50mm objective lens diameter; brighter DSOs directly visible; makes a large number of aditional stars available: a big plus for being able to successfully locate objects Aluminum material is lighter than other metal materials and more convenient to carry. Compliable with finder scope; Laser Pointer bracket or reflex sight bracket on telescopes; great for adding a second or third aiming device to your telescope Astromania Finder Scope, 6x30 Straight-Through Correct Image Optical Finderscope for Astronomy Telescope with Crosshair and Bracket, Fully Multi-Coated Telescope Finder - Upright & Non-Reversed Image 9x50 finder scope with 50mm objective lens diameter; brighter DSOs directly visible;; Makes a large number of aditional stars available that has a big plus... Fashion Men's swimwear Styles: Swim Briefs , Swim Thongs, Swim Trunks. From these Top Swimwear Brands: Arrecife, B-One, CandyMan, Clever, ErgoWear, HAWAI, JOR, PetitQ Schmidt Cassegrain Telescope Astomania 9x50 Finde Scope, Black - It Povides Both A Astromania 9x50 The base is made of die-cast metal and features one large thumbscrew locks and two M4 screws. Easy to Install The Dovetail Base for Finder Scopes features a large thumbscrew lock to secure the finder scope bracket in place. Well-Designed in Shape Drilled (but not threaded) to accommodate screws up to 4mm in diameter. Just put it on the optical tube and tighten the screws. There are two attachment screws to hold it to your optical tube assembly. Center-to-center screw hole spacing on your telescope must be 20mm (0.79) in order for this dovetail base to be compatible.
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