Quote:
Originally Posted by 你B
Ok I have decided to take the plunge and clean a newtonian primary mirror for the first time ever. Over the months, some crud has gradually built up so I thought it was time. I've read other stories of people cleaning theirs and seeing a marked improvement in image quality, so that's my major incentive to do it. I also agree with Mike, If you can see a film of dust/crud, there's no way it wont affect image quality.
I plan to follow Mike's (Iceman) routine....
1. Rinse it with luke warm water first
2. Let it soak for 15-30 mins in luke warm water with a drop of detergent
3. Rinse it with warm water
4. Rinse it with distilled water.
I don't know if I should drag the cotton buds across the surface, the mere thought of doing that and leaving scratches and streaks has me turning pale. I think just for the sake of my mental stability I'll leave that part out.
Just a couple of questions: does it matter if the detergent is like "lemon flavour" or anything like that, and is it okay to clean the sink before hand with bleach and then wash the sink thorougly or is the possibility of residual bleach a risk to the mirror's coating?
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http://www.gemini.edu/index.php?opti...ask=view&id=60
I'm going to experiment on something first.