 "Canon lens - 50mm" " Canon 50mm 2515A003 Camera & Camcorder Lenses CDW.com
"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." 
 "Canon EF 85mm f/1.8 USM Medium Telephoto Lens for Canon SLR Cameras - Fixed"@en-US "Camera Lenses | EISF"@en-US
"The Canon EF 85mm f/1.8 USM Standard & Medium Telephoto Lens is highly practical and ideal for a range of applications including portraiture. Its fast f/1.8 maximum aperture is effective in low light and ideal for shallow depth of field focus control. An ultrasonic autofocus motor (USM) provides fast, smooth and quiet AF action and because the front lens group does not rotate during focusing, polarizing and special filter effects can be used effectively."@en-US 