Quote:
Originally Posted by jjjnettie
 Now there's an idea Dave.
His lenses are very grotty, have you seen the condition of them??? It might take more than just a sponge to get them clean. 
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Solvol and a plastic scourer will do the job. Only resort to steel wool for very dirty lenses.
Seriously, many people over the years have been shocked when I tell them the right way to clean the mirrors in a newtonian. It can't be that easy can it??