Fotonex offers a protective cover for the AC90 that is designed to give protection from dust/sand, and may help with shooting in low temperatures. It looks suitable for shooting in foggy conditions, or a light drizzle of rain, but it is clearly not intended for rainy days. Product is called the PC37, made of water-proof fabric and with flaps to allow access to the battery, controls, etc. Can't find any hands-on reviews...and questions like "can you reach the lens rings easily?", "what noise is there when opening the flaps?", "How easy is it to attach/remove?" beg to be answered. And at 87 GBP it is a sizable investment. But it also appears to occupy a unique niche for the AC90, as I am not aware of any other offerings out there for protective covers. 



