Leica 11647 21mm

As the only 21mm lens for compact systems with an f/1.4 aperture, it combines an ultra-wide perspective with extremely shallow depth of field for dramatic subject isolation. Its floating element design maintains superb resolution even at the 0.7m close-focus limit, while vignetting and distortion are practically invisible. This lens is best for portrait and reportage photographers who need to separate a subject from a sweeping environmental context in low light.