• Standard focal length 50 millimeter lens is effective in a multitude of shooting situations and ideal for day-to-day shooting.
• Elements, Groups: 7 by 6, Diaphragm: Blades 8, Filter Thread: Font 58 millimeter. Minimum focusing distance: 17.8 inch.
• An f 1.4 maximum aperture provides clear imaging in low light situations and shallow depth of field.
• Ultrasonic autofocus motor (USM) operation is fast, smooth and virtually silent.
• 2 high-refraction lens elements and new Gaussian optics eliminate astigmatism and suppress astigmatic difference.
• This large aperture standard prime lens has superior peripheral brightness even at the maximum aperture.
• Lens construction: 8 elements in 6 groups, Filter size: 77 millimeter.
• Optimized for Digital – super multi-layer coating minimizes flare and ghosting – a common problem of digital cameras.
• The optimum optical design and molded glass aspherical lens elements provide excellent correction for all types of aberrations, including coma aberration, resulting in superior optical performance.
• The Hypersonic Motor (HSM) ensures silent, high speed auto-focusing as well as full time manual focusing capability.

Product Description ------------------- Standard lens Featuring superb quality and portability. 2 high-refraction lens elements and new Gaussian optics eliminate astigmatism and suppress astigmatic difference. Crisp images with little flare are obtained even at the maximum aperture. Filter size: 58 mm, Closest Focusing Distance: 1.5 feet. The 50mm f/1.4 standard lens is a terrific choice for both casual and professional photographers. The lens is outfitted with 2 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. .com ---- 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 box Canon 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