Celestron PowerSeeker 80EQ Telescope PowerSeeker 60, 70, 80, 114, 127 EQ Manua - Page 10

Installing the Finderscope To install the finderscope: 1. Locate the finderscope (it will be mounted inside the finderscope bracket) - see Figures 1-1 and 1-2. 2. Remove the knurled nuts on the threaded posts on the optical tube - see Figure 2-22. 3. Mount the finderscope bracket by placing it over the posts protruding from the optical tube and then holding it in place thread on the knurled nuts and tighten them down - note that the finderscope should be oriented so that the larger diameter lens is facing toward the front of the optical tube. 4. Remove the lens caps from both ends of the finderscope. Figure 2-22 Aligning the Finderscope Use the following steps to align the finderscope: 1. Locate a distant daytime object and center it in a low power (20mm) eyepiece in the main telescope. 2. Look through the finderscope (the eyepiece end of the finderscope) and take notice of the position of the same object. 3. Without moving the main telescope, turn the adjustment thumb screws located around the finderscope bracket until the crosshairs of the finderscope are centered on the object chosen with the main telescope. Objective Lens Eyepiece Finderscope Bracket Adjustment Screws Figure 2-22a Finderscope with Bracket Installing and Using the Barlow Lens Your telescope also comes with a 3x Barlow Lens which triples the magnifying power of each eyepiece. However, the greatly magnified images should only be used under ideal conditions - see the "Calculating Magnification" section of this manual. Figure 2-23 To use the Barlow lens with refractors, remove the diagonal and insert the Barlow directly into the focuser tube. You then insert an eyepiece into the Barlow lens for viewing. You can also, insert the diagonal into the Barlow lens and then use an eyepiece in the diagonal but you may not be able to reach focus with all eyepieces. For Newtonian telescopes, insert the Barlow directly into the focuser. Then, insert an eyepiece into the Barlow lens. Note: Start by using a low power eyepiece as it will be easier to focus. 3x Barlow Lens Magnification 60EQ 70EQ w/20mm Eyepiece 135x 105x w/4mm Eyepiece 675x 525x 10 80EQ 135x 675x 114EQ 135x 675x 127EQ 150x 450x