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. 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

Canon offers this standard lens featuring superb quality and portability. Two 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.

Amazon.com Product Description Lightweight and affordable, the Canon EF 50mm lens--which offers a fast f/1.8 aperture--is an excellent lens for people who prefer a fixed focal length. Canon's lightest EF lens at a mere 4.6 ounces, the lens boasts a traditional Gauss-type optical design that delivers a sharp performance even when wide open. As a result, the lens provides an image that's extremely close to how your eye perceives a subject, making it excellent for portraits and images that require a natural depth of field. In addition, the lens focuses as close as 18 inches, helping you take extreme close-ups. Finally, the lens offers an excellent color balance. As with all Canon lenses, the lens carries a one-year warranty.

• Focal length: 50mm
• Maximum aperture: 1:1.8
• Lens construction: 6 elements in 5 groups
• Diagonal angle of view: 46 degrees
• Focus adjustment: Overall linear extension system with Micromotor
• Closest focusing distance: 1.5 feet
• Filter size: 52mm
• Dimensions: 2.7 inches in diameter, 1.6 inches long
• Weight: 4.6 ounces