 "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 70-200mm f/4L USM"@en " Canon USM L Series telephoto zoom lens for EOS SLR cameras at Crutchfield.com "@en
"L Series telephoto zoom lens for Canon EOS SLR cameras"@en 
 General Brand Compatibility Canon Image Stabilization No Focal Length 70-200mm Maximum Aperture f/4 Weight 24 Parts Warranty 1 Year Labor Warranty 1 Year