|
Sorry, but I think a good laser collimation tool is a must for a DOB.
Additionally, the use of a Cheshire collimation eyepiece is recommended.
Attempting to collimate by eye would not be a happy experience.
Admittedly, doing a star test (by eye) is a good way to see that your collimation is good, but its not so easy to use this method to adjust collimation until you are much more accomplished.
|