The PT-E01 underwater case has been specially customised for Olympus E-300 and is waterproof up to a water pressure equivalent to a depth of 60 metres. With its durable, high quality polycarbonate construction, it protects the camera from water while also cushioning it from knocks and bumps on land.

The TTL flash connector allows optional use of the Olympus FL-20 & FL-36 TTL flash with the PFL-01 & PFL-E01 flash housing. Four interchangeable lens ports allow the optional use of 14-45mm, 11-22 or 14-54mm, 7-14mm, 8mm Fisheye and the 50mm Macro lens.