Hi Mike, The problem with lens cleaning discs is that they have to spin before they will clean enen then it is a hit and miss job at the best of times. the best way to clean a lens is to gain access to it and use a cotton wool bud (use isotonic fluid if you have some) and gently wipe over the lens with it, be very careful as the lens is floating and is easy to damage while you are in there clean and re-oil the running bars as well
aa, April 2005
