Sigma

Key features:

• Focal length: 24-70mm
• Aperture range: f/2.2-22
• Canon EF mount lens
• 35mm Film/ Full-Frame Digital sensor format
• Optical Stabilization (OS)
• 9 rounded blade diaphragm
• HSM with faster, yet smoother focusing
• Creates beautiful Bokeh 
• Splashproof and dustproof design
• USB Dock compatible

Key features:

• Focal length: 85mm
• Aperture range: f/1.4-16
• Canon EF mount lens
• 35mm Film / Full-Frame digital sensor format
• Rounded 9-blade diaphragm
• Hyper-Sonic Motor focusing (HSM)
• Two Low Dispersion elements
• Stellar optical performance
• Super Multi-Layer coating

Key features:

• Focal Length: 14 - 24mm
• Aperture range f/2.8 - f/22
• Canon EF Mount Lens
• 35mm Film / Full-Frame Digital Sensor Format
• Hyper-Sonic Motor Focusing (HSM), manual override
• Virtually zero distortion at infinity focus
• 3 FLD, 3 SLD, and 3 Aspherical Elements
• Rounded 9-Blade Diaphragm
• Dust/splash proof Weather Sealing
• Sigma USB Dock compatible

Key features:

• Focal length: 35mm
• Aperture range: f/1.4-16
• Canon EF mount lens
• 35mm Film / Full-Frame / APS-C
• Hyper-Sonic Motor Focusing (HSM)
• Rounded 9-blade diaphragm
• Two aspherical elements
• Super multi-layer coating
• Sigma USB dock compatible

Key features:

• Focal length: 35mm
• Aperture range: f/1.4-16
• Canon EF mount lens
• 35mm Film / Full-Frame / APS-C
• Hyper-Sonic Motor Focusing (HSM)
• Rounded 9-blade diaphragm
• Two aspherical elements
• Super multi-layer coating
• Sigma USB dock compatible

Key features:

• Focal length: 18-35mm
• Aperture range: f/1.8 - f/16
• Canon EF mount lens
• Canon APS-C format
• 9 blade rounded diaphragm
• Special low Dispersion glass
• Hyper sonic motor
• Internal focusing and zoom design
• USB dock compatible

Key features:

• Focal length: 18-35mm
• Aperture range: f/1.8-16
• Canon EF mount lens
• Canon APS-C format
• 9-blade rounded diaphragm
• Special Low Dispersion glass
• Hyper Sonic Motor
• Internal focusing and zoom design
• Sigma USB dock compatible