How-To Laser Collimate a Newtonian Reflector

Pre-requisits

None


Process

Below are the simple steps for using a laser collimator to collimate a Newtonian reflector telescope.

  1. Using a ruler center the Spider at the top of the OTA and loosen the primary mirror locking nuts.

    Collimation Collimation

  2. Turn the collimator on and place in the focuser of the scope.

    Collimation

  3. Using an Hex/Alan key adjust the secondary mirror so the laser is pointing at the exact center of the primary mirror (most larger scopes have a 'doughnut' in the center to help with this) this is best done with the scope laid down in case you drop the Alan key

    Collimation

  4. Tighten all bolts/screws on the secondary mirror so it cant move. Steps 3 and 4 will only need to be done occasionally.

  5. To align the secondary mirror adjust the primary mirror bolts so the laser hits the center of the target within the collimator.

    Collimation Collimation

  6. Lock the primary mirror with the locking bolts this completes the collimation.

    Collimation



END OF PROCESS
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