FOCUSERS AND SPIDERS( 4 )

Whether you're building your own telescope from scratch or making some much-needed improvements on a store-bought scope, our Telescope Components will make your project a whole lot easier. Our easy-to-install 4-vane, fully adjustable spiders can save you hours of time and trouble, and will make collimation a snap!

2 inch Low-Profile Rack and Pinion Focuser A robust, heavily built 2 inch Rack and Pinion focuser with a Universal Base and Free 1.25 inch adaptor ($11.95 value). Racked-in height is 3 inches with 1.5 inches of travel. All metal construction. Knobs are plastic. Price: US$ 79.95 Quantity:

Low Profile Helical Focuser 2-inch A solid, well built, heavy duty, all-metal helical focuser with a universal base. 2.00 inch size with a Free 1.25 inch adaptor. "Racked-in" height is 1.75 inches, travel is more than 2 inches. Smooth, positive movement and fine adjustment. Price: US$ 59.95 Quantity:

2 Inch to 1.25 Inch Eyepiece Adaptor Lets you use economical standard 1.25 inch format eyepieces in 2 inch focusers. Solid aluminum construction with single eyepiece set-screw and dust cover. In stock for immediate shipment! Price: US$ 11.95 Quantity:

Fully Adjustable 4 Vane Spiders The Spider and Diagonal Holder Assembly (the "spider") holds the elliptical secondary mirror (diagonal mirror) securely in place and provides an easy method of adjustment and alignment for the mirror. e-Scopes® 4-vane spiders fit telescope tubes from 7 to 15 inches inside diameter. Complete installation instructions are included. Fits Tube : 7.5 - 8.5 inch I.D. 1.3 inch hub 9.5 - 10.5 inch I.D. 1.3 inch hub 9.5 - 10.5 inch I.D. 1.8 inch hub 11.5 - 12.5 inch I.D. 1.8 inch hub 14.5 - 15.5 inch I.D. 1.8 inch hub Unit Price: Quantity: