Ultra-high image quality - The lens is made up of 20 elements in 13 groups. This includes two super ED lenses and one aspherical lens which assists in minimizing the chromatic and field curvature aberrations that can occur within the image. Powerful image stabilization - The lens is equipped with excellent five stop image stabilization (CIPA guidelines). This allows photographers to make the most of the performance of the GFX high image resolution even when taking telephoto shots without the use of a tripod. Silent and high-speed autofocus - The linear motor which drives the focus elements is accurate, quiet, and fast. The lens also includes a new mechanism for securing the linear motor into position when turning the power the camera off or during image playback. This prevents the lens elements from moving unnecessarily when the lens is not in use. Robust durable design, appropriate for tough shooting environments - The lens has been sealed in 10 areas for dust and weather resistance to allow shooting with stability in tough environments while also operating at temperatures down to 14 degrees Fahrenheit (-10 degrees Celsius). FUJINON GF1.4x TC WR compatible - The FUJINON 1.4x teleconverter (GF1.4x TC WR) extends the telephoto shooting range of the GF100-200mmf5.6 R LM OIS WR to 140-280mm (equivalent to 111-221mm in 35mm format) while maintaining superior image quality