 "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 24-70mm f/2.8L II USM Standard Zoom Lens Black"@en-US
"Canon EF 24–70mm f/2.8L II USM Standard Zoom Lens: Built to handle the demands of professional use, this lens is durable as well as dust- and water-resistant. Fluorine coatings on the front and rear surfaces keep smudges and fingerprints to a minimum."@en-US 