One day, digital camera manufacturers will create a camera so tiny it will be invisible to the naked eye. Until that day comes, we have the Optio M30 from Pentax - a super-slim camera that's only 18mm deep. Pentax say this makes it "the perfect camera to take out to capture any occasion", I say it's probably also the perfect camera to forget you're carrying in your pocket and unwittingly send for a quick spin cycle, but of course, that's just me. As well as the slimline body, the Optio M30 also has a versatile 3x optical zoom lens, 7.1 effective megapixels and a large, functional LCD monitor. It'll be available from February and will cost £139.99.
Related: Pentax Optio E30: entry-level 7.1 megapixel digital camera | Pentax waterproof camera | Pentax's touchscreen Optios
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