Quote Originally Posted by Ed Sukach
When you clean ANY lens, with ANY method, you WILL lose "some of the coating". Anything that comes in contact with the coating, including liquids, will abrade and remove some of it.
While this may be true of early coatings used in the 50's and 60's, todays coatings are very hard. However, I agree that more lenses have be ruined by overcleaning than by not cleaning them. Kodak makes a good lens clearer that is safe to use.