I was playing around with a Pentax W60 the other day. It, like all waterproof cameras is great for the beach as sand and sea will not get into the camera so you can take pictures, It's also great for good old British weather where it pees it down regularly. So fine you can use it when it's wet.
But it got me wondering, as I wiped the rain drops of between shots, how long does it take to scratch the glass/plastic protection over the lens? Because in the rain I was subject to I had to clean the lens after every shot. It wasn't long before my lens cloth was wetter than the lens. So out came the dry corner of the t-shirt, at some point it has to scratch...anyone got any experience of this?