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Fully Adjustable 4 Vane Spiders
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Four-vane Spiders include a fully adjustable diagonal mirror holder for Newtonian/Dobsonian telescope tubes with inside diameters from 7 inches to 15 inches. Diagonal holder is easily adjustable and holds that adjustment once it is set. Diagonal mirror attaches to the holder by non-distorting silicone adhesive (not included) instead of mechanical clips that can "pinch" and distort the mirror.
There are two hub diameters available for the 9.5 to 10.5 inch I.D. tube spiders: 1.3 inch and 1.8 inch. Choose the 1.8 inch hub diameter for larger diagonal mirrors, like the 1.83 or 2.5 inch M.A. mirror that comes with our 8 inch f/4.5 mirror sets. "Small" spiders all come with the 1.3 inch hub, and "large" spiders all come with the 1.8 inch hub.
Complete instructions are included.
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Coulter Optical, Odyssey & e-Scopes are REGISTERED TRADEMARKS of Murnaghan Instruments Corp.
Copyright © 1998 - 2013 Murnaghan Instruments Corp. All Rights Reserved. Store rev. 010613A
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