Panasonic LUMIX G 25mm F1.7 ASPH. Lens H-H025E-K (Black) - International Version (No Warranty) This version is originally intended for sale outside the US and may contain adapters, manuals, and warranties not compatible with US standards. Model: H-H025E-K 25mm / 50mm (35mm camera equiv.) Focal Length, F1.7 Aperture HD Video Support Micro Four Thirds mount