Equivalent to 300mm (35mm) 19 elements in 14 groups, including one large-diameter Super ED Lens element and two large-diameter ED Lens elements to minimize chromatic aberration New Focus Preset function that instantaneously changes the focus to a preset position, enabling photographers to capture the main subject with ease, and without having to make focal readjustments. Utilizing linear motors, the XF200mmF2 R LM OIS WR achieves fast, near silent and high-precision AF performance The Lens offers 5-stop image stabilization performance and is sealed at 17 points and designed to be weather and Dust-Resistant and to operate in temperatures as low as 14 Degree/-10 Degree.