First use - Commissioning

Like any laser collimator, the collimator must itself be re-collimated before use. Indeed, the beam is not perfectly aligned in the axis of the instrument: aiming a wall (for example) and by rotation at 3 x 120 ° on a small fixed support vee (it is easy to Wooden achieve), the discrepancy is 2 cm over a distance of 2 m. The correction is possible by releasing the three small screws hidden by a plastic protection (to be removed with a pin or similar object). But be careful not to disturb anything, otherwise we must be patient, especially not to get excited, and take notes for the respective effects of the 3 screws. Then normal use without problems provided to first check the collimation of the secondary mirror of your Newton.