How do I clean the objective lens on the CR-2 AF?

First, use a blower to blow away any dust or dirt — do not use a brush and do not allow the blower to touch the lens. Then, slightly dampen a Canon-designated lens cleaning paper with lens cleaner and wipe the lens starting from the center in spirals toward the circumference, changing the paper until no dirt or streaks remain. Never wipe the objective lens with disinfectant ethanol, eyeglass cleaner, or silicone-coated paper, as these can corrode the surface or leave streaks. (Page 40)