Lumix G 25mm f/1.7 ASPH., from Panasonic

Fast Standard DSLM LensThe compact, lightweight H-H025 LUMIX G 25mm is a fast standard lens designed for LUMIX G DSLMs and the Micro Four Thirds system standard. It's just 2.05 in. long and weighs only 5oz.Compact Lens, Exceptional ImagesWith a 35mm equivalent of 50mm, this compact LUMIX G lens provides a beautiful bokeh background defocus effect for exceptionally creative imaging. It's comprised of 8 elements in 7 groups, including one Ultra-High Refractive Index lens element and two aspherical elements.High-Precision, High-Speed AFWhen mounted on a LUMIX G series camera you'll take full advantage of this exceptional lens's high-speed, high-precision Contrast AF system. With a well-developed, high-performance stepping motor, focusing action is fast, smooth and silent, ideal for use in both photo and video recording.Nano Surface CoatingThe LUMIX G 25mm, F1.7 ASPH. lens incorporates Panasonic's unique Nano Surface Coating technology to minimize reflections through the entire visual range (380nm-780nm). The result is a dramatic reduction of ghosts and flare for extremely clear image quality.Stable Optical PerformanceThe H-H025 LUMIX G lens Maintains stable optical performance even at wide F-stops.