Thanks!
Thanks for the reply Charlie_ps2. I was hesistate in the 1st place as I read some articles saying that there is a risk to clean the lens with ordinary CD cleaner as this might knock/spoilt the lens (I do not know how this could happen though). What they recommended is to clean the lens with cotton buds. BTW, how long should I clean it as for periodical maintenance? Will this prolong the len's life span?
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