Ultra Wide Zoom

• EF Mount L-Series Lens/Full-Frame Format
• Constant f/4 Maximum Aperture
• Super UD, UD, and 4 Aspherical Elements
• SWC, Air Sphere, and Fluorine Coatings
• Ring-Type USM Autofocus Motor
• Internal Focus; Full-Time Manual Focus
• Weather-Resistant Design
• Rounded 9-Blade Diaphragm

• E-Mount Lens/Full-Frame Format
• Aperture Range: f/2.8 to f/22
• Three XA Elements, Two Super ED Elements
• Nano AR II and Fluorine Coatings

• Focal Length & Maximum Aperture: 24-70mm f/2.8
• Minimum Focusing Distance: Wide 0.69ft/0.21m ; Telephoto 1.25ft/ 0.38m 
• Maximum Magnification:  0.3x (at 32mm)
• Lens Construction: 21 elements in 15 groups
• Special Elements: 3 Aspherical lenses, 3 UD lenses
• Filter Size Diameter: Ø82 mm

• Focal Length & Maximum Aperture : 15-35mm f/2.8
• Minimum Focusing Distance : 0.92 ft./0.28 m
• Maximum Magnification : 0.21x (at 35mm)
• Lens Construction : 16 elements in 12 groups
• Special Elements : 3 Aspherical lenses, 2 UD lenses
• Filter Size Diameter : 82 mm
• Aperture Blades : 9 (circular)
• IS (CIPA Standard Correction Effect) : 5 stops* (When using the EOS R camera with a 70mm focal length.)
• Focus Drive System : Nano USM
• Minimum Overall Length : Approx. 4.99 in. / 126.8 mm
• Maximum Diameter Approx. : 3.48 in. / 88.5 mm
• Weight : Approx. 1.85 lbs. / 840 g

• E-Mount Lens/Full-Frame Format
• Aperture Range: f/2.8 to f/22
• Two Extra-Low Dispersion Elements
• Three Aspherical and Two XA Elements
• Two Direct Drive SSM AF Groups
• Focus Hold Button, AF/MF Switch
• Dust and Moisture-Resistant Construction

• X-Mount Lens/APS-C Format
• 12-24mm (35mm Equivalent)
• Aperture Range: f/2.8 to f/22
• Three ED and Four Aspherical Elements
• Three Super ED Elements
• Nano-GI Coating
• Field Curvature Correction Element
• Linear Focus Motor
• Rounded 9-Blade Diaphragm
• Weather-Sealed Construction

• F Mount Lens/FX Format
• Aperture Range: f/2.8 to 22
• Two ED Glass & Three Aspherical Elements
• Nano Crystal & Super Integrated Coating
• Silent Wave Motor AF System
• Internal Focus; Manual Focus Override
• Minimum Focus Distance: 11"
• Dust and Moisture Resistant
• Built-In Petal-Style Lens Hood
• Rounded 9-Blade Diaphragm

Other Mount Styles:

• EF-Mount Lens/Full-Frame Format
• Aperture Range: f/4 to 22
• FLD and Aspherical Elements
• Super Multi-Layer Coating
• Hyper Sonic AF Motor, Manual Override
• Rounded 9-Blade Diaphragm
• TSC Material, Brass Bayonet Mount
• Dust- and Splash-Proof Construction

Other Mount Styles:

• F-Mount Lens/FX Format
• Aperture Range: f/4 to 22
• FLD and Aspherical Elements
• Super Multi-Layer Coating
• Hyper Sonic AF Motor, Manual Override
• Rounded 9-Blade Diaphragm
• TSC Material, Brass Bayonet Mount
• Dust- and Splash-Proof Construction
• Compatible with Sigma USB Dock

• E-Mount Lens/Full-Frame Format
• Aperture Range: f/4 to f/22
• One AA Element, Four Aspherical Elements
• Three ED Elements
• Zeiss T* Anti-Reflective Coating
• Linear Autofocus Motor; Internal Focus
• Optical SteadyShot Image Stabilization
• Filter Diameter: 72mm
• Dust and Moisture-Resistant Construction
• Seven-Blade Circular Diaphragm