Leica D Vario-Elmarit 14-50mm lens : World's First Leica Interchangeable Lens with Optical Image Stabilization System Designed Exclusively for Digital SLR Cameras. Leica Camera AG and Panasonic are pleased to announce the development of a new interchangeable lens based on the Four Thirds standard. Featuring a focal length from 14mm to 50mm (35mm equivalent: 28mm to 100mm), the new Leica D Vario-Elmarit 14-50mm/F2.8-3.5 ASPH lens is the first interchangeable lens from Leica developed exclusively for digital SLR cameras. The “D” signifies that it is designed for the new digital system. Leica Camera AG and Panasonic affirm their commitment to developing innovative, high-performance lenses in today's evolving digital era.