"When I'm Cleanin' Lenses":
(with apologies to George Formby)
- Most of the dust inside a lens doesn't really bother anything. But. If you want to go after it, one of those aerosols of "canned air" often works.
- You can never really blow the dust out of the lens, but you may be able to move it somewhere where it'll stick to some oil or grease. (If your lens doesn't have dust in it, it may be because it's sopping wet with oil in there.)
- Caution: Test the can of "air" before you poke that nozzle into the mount-end of your lens. My experience has been that these cans, particularly when full, can spray liquid, as well as gas, and make one hell of a mess. If this happens inside your lens, you're in deep...
- Test it on a bathroom mirror, in different attitudes - horizontal, vertical - and at different flow rates, to get a feel for what you're dealing with. You may want to "bleed off" some of the gas, if you're working with a new can. And, if your wife can't figure out what the spots are on the mirror, well...
- A few links to good lens cleaning advice:
Lens Cleaning by Robert Monaghan.
Cleaning microscope lenses by Colin Duke.
Cleaning Lenses by Harry Fleenor.
- My friend, Dave, in Oklahoma, kindly sent me a product called Lens Clens™ that I've been using with pleasant results. Their web site is General Production Services. They're based in Anaheim, CA.
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