From professional field shooting to high-speed, high-precision auto focus, the LUMIX S PRO 70-200mm F2.8 O.I.S. lens (S-E70200) is a versatile, large-aperture telephoto zoom lens that delivers superior performance across the entire zoom range. This lens is expertly designed with 22 elements in 17 groups, including 2 UED (Ultra Extra-low Dispersion) lenses and 3 ED (Extra-low Dispersion) lenses. This optimal alignment effectively combats both axial chromatic aberration and chromatic aberration of magnification, ensuring crisp, clear images.The LUMIX S PRO 70-200mm lens also features an aspherical lens that corrects astigmatism, achieving high-resolution performance. Its double focus system minimizes aberration fluctuations at close distances, resulting in high descriptive performance from the center to the corners of the frame over the entire zoom range, even with its large aperture.With a zoom range of 70mm to 200mm, this lens can be paired with a Teleconverter for super telephoto shooting up to 400mm (2x, with DMW-STC20), and a maximum 480 fps focus control. The built-in O.I.S. (Optical Image Stabilizer) works in harmony with the camera's Body I.S. and the 5-Axis Dual I.S., allowing for a 7-stop slower shutter speed.The lens also features a focus clutch mechanism for instant AF/MF switching and precise manual focusing. The constant F2.8 large aperture ensures smooth defocus gradation from the focus peak to the neighboring area of the image, creating a