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The 65mm f/4 is a wide angle lens with a 68° angle of view. It is the most popular wide angle focal length in 6x7cm format. It renders natural perspective with increased depth of field and angular coverage and provides the least amount of distortion of the wide angle range for subjects at the edges of the frame. It incorporates an adjustable floating element system for correction of edge sharpness and distortion, especially at wide open apertures and close distances.
