Collimating your Newtonian reflector telescope with the Orion 7358 Quick-Collimation Cap is a straightforward process. Here's a step-by-step guide to help you achieve optimal optical performance:
- Insert the Collimation Cap: Begin by inserting the Orion Quick-Collimation Cap into the 1.25” focuser of your telescope.
- Prepare for Collimation: Ensure you're in a well-lit environment and orient the telescope horizontally. Place a white sheet of paper inside the telescope tube, opposite the focuser.
- Check Initial Alignment: Remove the eyepiece and look into the focuser. Verify that the secondary mirror is centered and that the reflections of the primary and secondary mirrors are roughly aligned.
- Align the Secondary Mirror: Use the adjustment screws on the secondary mirror holder to center the reflection of the primary mirror within the secondary mirror.
- Align the Primary Mirror: Adjust the primary mirror using its collimation knobs to center the secondary mirror's reflection within the primary mirror. Loosen the locking thumbscrews at the back of the optical tube before making adjustments.
- Finalize Adjustment: Once aligned, lightly tighten the locking thumbscrews to secure the primary mirror in position.
- Perform a Star Test: Point your telescope at a bright star. Center the star in your eyepiece and defocus the image. If the telescope is correctly collimated, you should see perfectly circular diffraction rings.
- Warranty Information: The Orion product comes with a one-year limited warranty against defects. For warranty claims, provide proof of purchase when contacting Orion Telescopes & Binoculars.
By following these steps, you can use the Orion 7358 Quick-Collimation Cap to effectively collimate your telescope. Refer to the full instruction manual for more detailed information.
