Power x Switch Installed On Your W-O Diagonal You already own a William Optics Star Diagonal? Well, why not turn that diagonal into a Power switching Diagonal? Now you can elevate your experiences under the stars to a whole new level. Did you know that unlike most other telescope designs, your SCT can operate at reduction, normal and multiplication factors with our Power x Switch System? This means that each eyepiece can work at .5X/1X/2X instantly. You can view every object at these magnification factors with our patent pending Power x Switch. So, if you currently use a William Optics Star Diagonal, we can install the Power x Switch on that diagonal and you can begin enjoying amazing views at 3 different magnifications with a single eyepiece. We'll tell you just what you need to do and for only $249+Shipping, your observing will be transformed and brought to a whole new level of enjoyment. Click on "More" for details.