www.astrocafe.hk

I have been waited the full moon to complete this task for more than half year. Tonight when I came back from gathering, I saw the sky condition may be ok. As a matter of fact the moon phase of tonight, the day after Mid-autumn festival is more close to 100% than that of the moon phase of Mid-autumn festival this year. So I went out at about 10:30pm & see if I can complete this task. But the thin clouds ruined my mission. To the worst, there is a small part in my M8, a circular ring of diameter of about 3cm, is loosen suddenly when I do focusing. The ring can be seen from the front side of the scope. It is running inside the tube! I handled the scope with great care so that the ring would not hit the front corrector & primary mirror. In order to fix it, it is inevitable to dissemble it! Any one has dissembled M8 or C8 before? Or any suggestions?

Sorry to hear that, any photo of that? may be I can help you.

See the metal ring inside the tube!!!

這台鏡過了保養期沒有? 否則找供應商保養一下會好些，他們有責任的。

這個很容易修復的，但要理解為何會出現這樣的問題，以免問題重演。

I bought this M8 from funoooo. It is a second hand scope. I need to check whether the warranty is over or not. To the worst situation, I need to dissemble it & fix it by myself. The loosen part seems departed from the central tube of the primary mirror.