Reference: C815F4LFS New EF-Mount Lens/Full-Frame Format Aperture Range: f/4 to f/22 Two Ultra-Low Dispersion Elements Sub Wavelength and Fluorine Coatings
Reference: C815F4LFS New EF-Mount Lens/Full-Frame Format Aperture Range: f/4 to f/22 Two Ultra-Low Dispersion Elements Sub Wavelength and Fluorine Coatings