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- World’s widest full-frame constant F2.8 at 12-24mm
- F2.8 max aperture provides extraordinary exposure and depth of field
- Spectacular resolution: 3x Extreme Aspheric elements, 1x Aspheric
- 3x ED (Extra-low dispersion) elements suppress chromatic aberrations
- 4x Extreme Dynamic - XD Linear motors for fast, precise autofocus