Sigma

Key features:

• Focal length: 18-35mm
• Aperture: 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: 50 - 100mm
• Aperture Range: f/1.8-16
• Canon EF- Mount Lens
• APS-C Format 
• Hyper Sonic Motor Focusing (HSM)
• Internal zoom and focus
• 3 FLD glass and 1 SLD glass element
• Rounded 9-Blade Polycarbonate Diaphragm
• Tripod collar- fixed, rotating
• Super multi-layer coating

Key features:

• Focal length: 50 - 100mm
• Aperture range: f/1.8-16
• Sigma SA mount lens
• APS-C format 
• Hyper sonic motor focusing (HSM)
• Internal zoom and focus
• 3 FLD glass and 1 SLD glass element
• Rounded 9-Blade Polycarbonate Diaphragm
• Tripod collar- fixed, rotating
• Super multi-layer coating

Key features:

• Focal length: 120 - 300mm
• Aperture range: f/2.8-22
• Canon EF mount lens
• 35mm film / full-frame digital sensor / DSLR (APS-C sensor)
• Optical Stabilizer (OS)
• Hyper-sonic motor focusing (HSM)
• FLD and SLD lens elements
• Super multi-layer coating
• Dust- and splash-proof construction
• Compatible with Sigma USB dock

Key features:

• Focal length: 18-35mm
• Aperture: f/1.8-16
• Nikon F mount lens
• Nikon DX format
• 9-blade rounded diaphragm
• Special low dispersion glass
• Hyper sonic motor ensures accurate autofocusing
• Internal focusing and zoom design
• USB dock compatible
• Super multi-layer lens coating

Key features:

• Focal length: 24-105mm
• Aperture range: f/4-22
• Canon EF-mount lens
• 35mm Film / Full-Frame digital sensor
• Optical Stabilization (OS)
• Hyper-Sonic Motor focusing (HSM)
• 3 Aspherical, 2 SLD, and 2 FLD elements
• Thermally Stable Composite
• Sigma USB Dock compatible

Key features:

• Focal Length: 16-300mm
• Aperture Range: f/3.5 - 6.7
• FUJIFILM X Mount Lens
• APS-C Format
• Optical Stabilization algorithm OS2 
• Wide-angle to Super-Telephoto Lens
• HLA (High-response Linear Actuator) motor 
• 1 Fluorescent Light Daylight (FLD) Elements
• 4 Special Low Dispersion (SLD) Elements
• 4 Aspherical Glass Elements
• 9 (Rounded Diaphragm) 
• Water- and Oil-Repellent Coating 
• Zoom Lock switch
• Dust and Splash Resistant Structure
• 67mm Filter Size