Olympus Mju 850SW Digital Camera Review - The Olympus Mju 850SW digital camera is a bit different to most others on the market. You can drop it from 1.5m and immerse it in water to a depth of 3m and it will carry on working. It's one of the very few consumer level digital cameras that you can do this with. The Mju 850SW has 8Mp and a 3x optical zoom lens. David Tymon from Cameras.co.uk has reviewed.