A month or so ago I had a minor mishap (drove the STL into a ladder late at night; no physical damage done) and needed to sort out the collimation on my GSO RC12. Collimation was affected slightly. Despite CCD inspector suggesting that my collimation was good I could see that it was not correct. I needed a way to check the rear collimation.
I bought a tak collimation scope to sort the problem. Then I discovered I needed an adapter from the Feather Touch focusor to the Tak scope. The Feather Touch has a screw thread fitting (no compression ring) and so too does the Tak scope. So after making an order with Precise Parts it finally came last week.
Tonight was the first chance I have had to assemble it all properly and determine the level of miscollimation.
Within minutes I had determined that the secondary was slightly out of collimation which I adjusted. Then looking at the secondary shadow I determined that the primary was slight out too. Adjusting the screws was simple and achieved the results I wanted in a couple of minutes.
It was that simple. However, I did watch the RCOS video made by Ken Crawford a couple of times, and followed a couple of pieces of literature (one with the Tak scope and the other through Bintel) to clarify which shadow was which.
If you own an RC of any desciption you need a collimation scope. It is worth the $300 including delivery. This is my suggestion of the day. Great tool. Now to star test (when the clouds go) and onto my imaging projects.
