Paul
As per my prior thread, I had to clean the corrector. I had no choice. Something dropped on it and stuck to it and when I attempted to remove it the obejct simply turned to mush.
It was too large to leave on the plate. Not much smaller than a five cent piece! I would rather I didn't have to, but didn't have a choice Paul.
Next point. As far as I can tell you're the only person who recommends cleaning in a "circular motion"? Celestron's own instruction manual and website recommend cleaning in a straight line from secondary out. So does every website and other "authority" I've read.
They all say avoid circular cleaning because it has the potential to re-contaminate the area you've just cleaned.
Celestron and all the other "experts" totally recommend 60% isopropyl alchohol with 40% distilled water as a cleaning agent.
Apart from that, the process you describe is exactly the same as what I've been doing, although I didn't give you a detailed description of what I've done.
By the way, what's IPA?
Anyway, thanks for all your suggestions
