Canon RF 10-20mm F4L IS STM review – the ultimate ultrawide

Two-minute reviewIf you were expecting Canon’s breathtaking 10-20mm zoom to be HUGE, then you’re in for a surprise. (Image credit: Rod Lawton)From the outside, there isn’t much to suggest that this is one of the world’s most extraordinary wide-angle lenses. It has the characteristically elegant, smooth, matte finish of Canon’s RF lenses – and, apart from the bulbous front element (which is standard for lenses this wide), this is a slim, neat optic that’s easy to handle and won’t

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