canon ef 50mm f 1 4 usm standard lens for slr cameras fixed lenses ultimate camera shop
ef mount lens aperture range f 1 4 22 two high refraction lens elements gaussian optics eliminate astigmatism ultrasonic autofocus motor manual focus override infrared index minimum focus distance 17 8 filter thread diameter 58mm the 50mm f 1 4 standard lens is a terrific choice for both casual and professional photographers the lens is outfitted with two high refraction lens elements and new gaussian optics which combine to eliminate astigmatism and suppress astigmatic difference as a result the lens obtains crisp images with little flare even at the maximum aperture the lens s f 1 4 speed meanwhile is perfect for available light shooting and as a bonus this lens is the only lens in the ef system to offer an extra small micro ultra sonic motor usm while still providing a full time manual focusing option other features include a close focusing distance of 1 5 feet a 58mm filter size and a one year warranty what s in the boxcanon normal ef 50mm f 1 4 usm autofocus lens e 58u 58mm snap on lens cap lens dust cap e rear and 1 year warranty specifications focal length 50mm maximum aperture f 1 4l lens construction 7 elements in 6 groups angle of view 46 degrees focus adjustment overall linear extension system with usm closest focusing distance 1 5 feet filter size 58mm dimensions 2 9 inches in diameter and 2 inches long weight 10 2 ounces warranty 1 year