Contemporary large-aperture standard lens gives owners of mirrorless cameras the opportunity to experience the fun of shooting wide open, with F1.4 brightness.. Contemporary large-aperture standard lens gives owners of mirrorless cameras the opportunity to experience the fun of shooting wide open, with F1.4 brightness.. Focal Length: 30mm (35mm Equivalent Focal Length: 45mm). Maximum Aperture: f/1.4. Minimum Aperture: f/16