DougM43

I removed and cleaned my 200mm mirror last night after it had been stored in the loft for a few years, even though the scope was stored with all the caps and covers on the mirror was filthy. I used some cheap unscented kitchen roll and reverse osmosis, de-ionised water. I used unscented kitchen roll to ensure no chemicals were left behind on the mirror and the RO/DI water (essentially empty water) dries without leaving any streaks or marks. You can buy this from any fish shop that sells live marine fish. (Not the local chippy) Ps, I am no expert and have never done it before but was very pleased with the results.