air in a tin bought from your local sationary store for a quick blow around
i normally use a scouring pad and washing up liquid for the sensor and front elements of lenses.
........................I always use a UV filter as Dave says.If going out in't rain,carry a little piece of shamy leather to wipe lens with.the cloths that glasses come with is meant to be cool too.
undies leaves brown streakes........................



brought a smile on a Monday morning Can def recommend these, breath on the front of the lens or use some optical cleaning fluid and wide away. Don't forget FIRST to make sure no grit etc on the lens.