This is a 2" SCT laser holographic collimater with a 2" adapter tube to mate the collimator to the 2" threads on the back of the telescope. The tube has a side cut-out for viewing the reflected central beam impact. This allows for two methods of collimation. The first is to directly place the laser in a 2" focuser using a target and the second is to attach the laser to the tube and attach both directly to the scope back and viewing the cenral beam impact. Also included are single beam inserts that can be exchanged for the holographic pattern. These can be used for collimating Newtonion scopes with 2" focusers. For complete information, visit collimator dot com. This set retails for $250.00 new. This is a like new item.
Sell for $202.00 plus shipping.