Collimating your Newtonian reflector telescope with the Orion 7358 Quick-Collimation Cap enhances its optical performance. Here's a step-by-step guide:
- Insert the Collimation Cap: Place the Quick-Collimation Cap into your telescope's 1.25” focuser collar.
- Prepare for Collimation: Perform this procedure in a well-lit area, aiming the telescope at a bright surface. Position the telescope tube horizontally. Place white paper inside the tube, opposite the focuser.
- Check Initial Alignment: Remove your eyepiece and view into the focuser. Ensure the secondary mirror is centered and that the reflections of the primary and secondary mirrors are aligned as shown in the manual's Figure 3A.
- Align the Secondary Mirror: Adjust the secondary mirror's tilt to center the reflection of the primary mirror within the secondary mirror (refer to Figure 3C).
- Align the Primary Mirror: Loosen the locking thumbscrews on the back of the optical tube. Use the spring-loaded collimation knobs to adjust the primary mirror's tilt, centering the secondary mirror's reflection within the primary mirror (see Figure 3D).
- Finalize Adjustment: Lightly tighten the locking thumbscrews to secure the primary mirror.
- Perform Star Test: Point the telescope at a bright star and center it in your eyepiece. De-focus the image; perfectly circular diffraction rings indicate proper collimation (see Figure 6).
- Warranty Information: The Orion product includes a one-year limited warranty covering defects in materials and workmanship. For warranty claims, provide proof of purchase when contacting Orion Telescopes & Binoculars. Following these steps with your Orion 7358 Quick-Collimation Cap will help optimize your Newtonian reflector's optical clarity. Consult the complete instruction manual included with the product for more detailed information.
