How Do You Check The Collimation Of The Optical System Of Your Meade Lightbridge Truss Tube Dobsonian Telescope?
The Meade Lightbridge Truss Tube Dobsonian Telescope is a great sky-viewing instrument. If your telescope is bumped or treated roughly, you will probably need to adjust the collimation or mirror alignment of the unit. Here’s how to check the collimation of the optical system on this telescope. Make sure the base is resting on the rubber feet, which should be on the floor. Verify that the entire assembly will move easily up and down. Verify that the entire assembly will move easily left and right. Verify that the eyepiece is installed on the telescope. Check the focuser and make sure the open end of the telescope is to your left. Verify that the reflection of the primary mirror is in the middle of the surface of the diagonal mirror. If not, adjust the collimation screws in the diagonal mirror housing until it is centered. View through the focuser and make sure that the reflection of the diagonal mirror is centered in the reflection of the primary mirror. If not, adjust the collimation s
