Panasonic DG Vario-Summilux 25-50mm f/1.7 MFT LensExperience Unmatched Clarity and Versatility in Micro Four Thirds Introducing the Panasonic Lumix G Leica DG Vario Summilux Lens, a premium zoom lens designed for Micro Four Thirds cameras. With a fast f 1. 7 aperture throughout the zoom range, this lens delivers exceptional image quality and versatility for both photo and video. Mount: Micro Four Thirds (MFT) Focal Length: 25 50mm (50 100mm equivalent) Aperture: f 1. 7 constant Optical Design: 17