Celestron Advanced VX 6" Newtonian Telescope Advanced VX Manual - Page 26

3. T ighten the adjustment screws until they make contact with the finderscope body. 4. L ocate the mounting bracket near the rear (open) end of the telescope. 5. L oosen the set screw on the mounting bracket on the telescope. 6. S lide the finder bracket (attached to the finderscope) into the mounting bracket on the telescope. 7. The finderscope bracket will slide in from the back. The finderscope should be oriented so that the objective lens is toward the front (open) end of the telescope. 8. T ighten the set screw on the mounting bracket to hold the finderscope in place. Installing the Eyepieces The eyepiece, or ocular as it is also called, is an optical element that magnifies the image focused by the telescope. Without the eyepiece, it would be impossible to use the telescope visually. The eyepiece fits directly into the focuser. To attach an ocular: 1. L oosen the set screw on the eyepiece adapter so that it does not obstruct the inner diameter of the barrel. 2. S lide the chrome portion of the eyepiece into the focuser. 3. T ighten the set screw to hold the eyepiece in place. Focuser Tension Screw 1.25 Eyepiece Adapter 2" Focuser Barrel Focuser Knob T-Adapter Thread To remove the eyepiece, loosen the set screw on the focuser and slide the eyepiece out. You can replace it with another ocular. Eyepieces are commonly referred to by focal length and barrel diameter. The focal length of each eyepiece is printed on the eyepiece barrel. The longer the focal length (i.e., the larger the number), the lower the eyepiece magnification (i.e., power). The shorter the focal length (i.e., the smaller the number), the higher the eyepiece magnification. Generally, you will use low-to-moderate power when viewing. Your refracting telescope can use eyepieces with both a 1.25" and 2" barrel diameters. To use a 2" barrel eyepiece, the 1.25" eyepiece adapter must first be removed. To do this, simply loosen the two chrome thumbscrews located around the focuser barrel and remove the 1 1/4" adapter. Once removed, a 2" eyepiece or accessory can be inserted directly into the focuser barrel and secured with the two thumb screws. Your telescope comes with a 1.25" star diagonal. This diagonal can be inserted into the end of the 1.25" adapter allowing you to use 1.25" eyepieces at a more comfortable angle when viewing near the zenith. Setting Up the Newtonian Reflector (#32054 & #32062) Installing the Finderscope To install the finderscope onto the telescope you must first mount the finderscope through the finder bracket and then attach it to the telescope. Toward the front of the telescope tube, near the focusing assembly, there is a small bracket with a set screw in it. This is where the finderscope bracket will be mounted. To install the finderscope: 1. S lide the rubber O-ring over the eyepiece end of the finderscope and roll it 2/3 of the way up the finderscope. 2. Insert the eyepiece end of the finderscope through the bracket until the O-ring presses tightly between the finder and the inside of the bracket. 3. Tighten the adjustment screws until they make contact with the finderscope body. 4. Locate the mounting bracket near the front (open) end of the telescope. 5. Loosen the set screw on the mounting bracket on the telescope. 6. Slide the finder bracket (attached to the finderscope) into the mounting bracket on the telescope. 7. T he finderscope bracket will slide in from the back. The finderscope should be oriented so that the objective lens is toward the front (open) end of the telescope. 8. Tighten the set screw on the mounting bracket to hold the finderscope in place. Installing the Eyepieces The eyepiece, or ocular as it is also called, is an optical element that magnifies the image focused by the telescope. Without the eyepiece, it would be impossible to use the telescope visually. The eyepiece fits directly into the eyepiece holder. To attach an ocular: 26 I