Meade Polaris 130mm User Manual - Page 21

Fig. 13 Fig. 14 you will recognize a properly collimated Fig. 15 instrument and can adjust the collimation yourself, if necessary. 19 3 2 2 2 1 11 1 3 3 2 2 4 4 3 5 5 Correct Collimation 4 1 Primary Mirror Cell 2 tissues or damage could result to the optics. DO NOT use a commercial photographic 3 lens cleaner. 4 4 2 1 1 3 2 2 2 Seconda3ry Mirror Misalignment 2 1 5Fig. 16 2 1 3 2 A. CORRECT COLLIMATION 3 The properly collimated (aligned) mirror system in the Meade Polaris telescope assures the sharpest images possible. This occurs when the primary mirror and secondary mirror are tilted so that the focused image falls directly through the center of the focuser draw tube. These mirror tilt adjustments are made with the secondary mirror assembly and the primary mirror cell (Fig. 13) and will be discussed later. 3 4 COLLIMATION (ALIGNMENT) OF OPTICS (REFLECTING MODELS ONLY) Primary Mirror Misalignment All Meade Polaris Reflecting telescopes are optically aligned at the factory prior to shipment. It is unlikely that you will need to align, or collimate, the optics after receipt of the instrument. However, if the telescope received unusually rough handling in shipment, it is possible that the optics must be re aligned for best optical performance. In any case this alignment procedure is simple, and requires only a few minutes the very first time the telescope is used. Take the time to familiarize yourself with the following collimation procedure, so that A B Collimation Looking at or near the Sun will cause irreversable damage to your eye. Do not point this telescope at or near the Sun. Do not look through the telescope as it is moving. Fig. 17 C