just decided to take my G9 underwater (in canon housing), just wondering when the supplied grease that arrived with the housing run out; which other to use? must I look for "canon" grease? any silicone grease will do without deteriorating the gasket? what do you normally use? the O-ring material for canon housing seems to me quite delicate - but that is maybe just my feeling never seen anything else though.
thanks.
thanks.