SIGMA AF 135mm f1.8 DG ART HSM Leica L-mount

L-Mount Lens/Full-Frame Format Aperture Range: f/1.8 to f/16 Two FLD Elements, Two SLD Elements Super Multi-Layer Coating A fast telephoto prime, the Leica L-mount 135mm f/1.8 DG HSM from Sigma pairs bright and sophisticated optics with intuitive handling and design. As part of the Art line of lenses, this 135mm f/1.8 is designed for high-resolution rendering, and utilizes FLD and SLD glass to control chromatic aberrations and color fringing for notable clarity.