The Lumix G 25mm f/1.7 ASPH. from Panasonic is a 50mm equivalent lens featuring a bright f/1.7 maximum aperture for enhanced low-light shooting and depth of field control.  A Nano Surface Coating has been applied, too, and helps to reduce flare and ghosting for increased contrast and color fidelity. Designed for Micro Four Thirds mirrorless cameras, this lens provides a 50mm equivalent focal length to represent a normal perspective. One UHR element and a pair of aspherical elements help to achieve even illumination and sharpness for consistent performance throughout the aperture range. The stepping motor delivers fast, smooth, and near-silent autofocus performance to benefit both still photograph and movie recording applications.