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Established in 2001, China Anliang Glasses Co., Ltd. is a professional lens shop and store. We maintain a complete product line, and own a high quality and professional team for corresponding work from buy, design, exploitation, innovation, manufacture to cheap lens sale. We especially focuse on the R&D, production, marketing and servicing of various eyeglass categories, and provide OEM and ODM services to global brands. All of our products obtained the AJA ISO9001 certification and comply with international quality standards such as CE and FDA standards.
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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
lens

Macro lens designed for Canon digital SLR cameras
50mm focal length
f2.8 maximum aperture
Super Multi Coating reduces flare and ghosting common to digital SLR cameras
Screw-in lens hood included
Focal length: 50mm
Maximum aperture: f/2.8
Lens construction: 10 elements in 9 groups
Angle of view: 46.8 degrees
Number of diaphragm blades: 7
Minimum aperture: f/45
Minimum focusing distance: 7.4 inches
Maximum magnification: 1:1
Filter size: 55mm
Corresponding mount: Canon
Dimensions: 2.8 inches in diameter and 2.6 inches long
Weight: 11.3 ounces
Warranty: 1 year
Designed as a quick-focusing macro lens the AF speed of 50mm, f2.8 EX Macro is 1.4 times faster than previous 50mm f2.8 macros. It features a non-rotating front lens group which makes it easier to work with polarizing filters and has a focus limiter (eg. Full Range; - 9.8 in.; 9.1 in. - 7.4 in.). The Sigma 50mm f/2.8 EX Macro lens also features the new deluxe EX external finish
   
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