Introduction Specifications and Features The Panasonic LUMIX G 25mm F1.7 ASPH is a fast, compact, and lightweight prime lens. It has a bright f/1.7 maximum aperture that allows for shooting low-light scenes and offers additional depth-of-field control over slower kit zooms.Lens construction consists ofeight elements in seven groups, including two aspherical lenses to reduce chromatic and spherical aberrations for increased sharpness and clarity. The company says the optical formula also includes one ultra-high refraction (UHR) element that helps produce even illumination and sharpness for consistent performance throughout the aperture range. It achieves an attractive and smooth