Key Specifications & Features
- Focal Length: 18–35mm (35mm full-frame equivalent: 28.8–56mm on Canon APS-C bodies)
- Maximum Aperture: f/1.8 (Constant throughout the entire range)
- Minimum Aperture: f/16
- Lens Construction: 17 elements in 12 groups (Includes 4 Aspherical and 5 Special Low Dispersion glass elements to eliminate aberrations)
- Aperture Blades: 9 rounded blades for incredibly smooth, circular bokeh
- Autofocus Motor: Hyper Sonic Motor (HSM) for rapid, quiet phase-detection focusing
- Minimum Focusing Distance: 11 inches / 28 cm
- Filter Size: 72mm
- Weight: Approx. 28.6 oz / 810 g























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