• Unique focal length lens hat provides realistic texture and amazing visual expression • Indicate the unmeasurable atmosphere with numerical values, and enjoy the pleasure of owning lenses for years to come • The 31mm provides a unique expression for image capture with the perfect balance between 35mm and 28mm standard wide angle lenses • Glass molded aspherical lens and high-refractive low dispersion lens create a perfect combination of premium results and features a large aperture of F1.8 • High performance multi-coating "HD Coating", effectively reduces ghosting and flare in adverse lighting conditions such as backlight