A fixed prime 18.3mm lens offers a comfortable 28mm equivalent wide-angle lens, which is complemented by a bright f/2.8 maximum aperture to suit working in a variety of lighting conditions. The optical construction incorporates six elements in four groups, including two aspherical elements that help to reduce spherical aberrations and distortion for improved sharpness and accurate rendering. Two focusing modes also suit working with general subjects, from 3.9" to infinity, while a dedicated macro setting benefits working with close-up subjects within a 2.4-4.7" range. An internal two stop-effective (ND 0.6) filter is also available for either slowing the shutter speed or permitting working with a wider aperture setting, and the lens has a nine-blade diaphragm to contribute to a smooth boke.
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