The Panasonic Lumix Leica 25-50mm f1.7 WP zoom lens is a versatile option for Micro Four Thirds kits, with its 50-100mm equivalent focal range perfect for portraits, fashion and events photography, and so much more. The bright f1.7 maximum aperture of this lens, which is available throughout the zoom range, is perfect for depth of field control as well as keeping you capturing sharp shots in dim conditions. This sleek and stylish Micro Four Thirds compatible zoom lens is great for those that love manual photography, thanks to its physical aperture ring which is stepless and silent - great news for video shooters. Image quality is assured throughout the entire zoom range, with a premium optical design that includes one aspherical element, three extra-low dispersion elements, and one ultra high-refractive index element. This lens is also notable for an excellent physical quality; it is dust, splash and freeze-proof, assuring users can experience its excellence even out in difficult weather conditions. The Panasonic Lumix Leica 25-50mm f1.7 WP zoom features a fast and quiet Linear AF system, which is a match to various forms of still photography, as well as video and vlogging applications. The focus is internal, so the lens remains compact throughout performance and it is notable for its lack of focus breathing. This lens is excellent for savvy users that like to switch quickly between manual and auto focus, thanks to its fast and intuitive focus clutch mechanism, while a focus ring control is also included to adjust the feel of the focus ring to your liking.