Reference: C28300LISU New EF-Mount Lens/Full-Frame Format Aperture Range: f/3.5 to f/40 Two Aspherical and Three UD Elements Super Spectra Coating

Reference: C28F28IS New EF-Mount Lens/Full-Frame Format Aperture Range: f/2.8 to f/22 One Aspherical Element Super Spectra Coating

Reference: C300F28LISII New EF-Mount Lens/Full-Frame Format Aperture Range: f/2.8 to f/32 Two Fluorite Elements Sub Wavelength Coating

Reference: C300F4LISU New EF-Mount Lens/Full-Frame Format Aperture Range: f/4 to f/32 Two Ultra-Low Dispersion Elements Super Spectra Coating

Reference: EF35F14LIIU New EF-Mount Lens/Full-Frame Format Aperture Range: f/1.4 to f/22 Blue Spectrum Refractive Optics Element Two Aspherical Elements, One UD Element

Reference: EF35F2ISU New EF-Mount Lens/Full-Frame Format Aperture Range: f/2 to f/22 One Aspherical Element Super Spectra Coating

Reference: C400F28LISIIU New EF-Mount Lens/Full-Frame Format Aperture Range: f/2.8 to f/32 Two Fluorite Elements Sub Wavelength Coating

Reference: C400F28LISIIIU New EF-Mount Lens/Full-Frame Format Aperture Range: f/2.8 to f/32 Super UD and Fluorite Elements Super Spectra and Air Sphere Coatings

Reference: C400F4DOISIIU New EF-Mount Lens/Full-Frame Format Aperture Range: f/4 to f/32 Gapless Dual-Layer Diffractive Optics One Aspherical Element, One UD Element