ARRI extender ALURA 1.4x LDS

It extends the focal length range of the lens by a factor of 1.4 with a loss of only one or two T-stops at full aperture, and it transfers lens metadata to the camera based on the ARRI Lens Data System (LDS) protocol. Most ALEXA cameras automatically recognize the extender and display the correct lens data. The extender attaches between the camera's PL mount and the PL mount of the lens. Lightweight and featuring this simple design, it provides an affordable solution for independent filmmakers, nature photographers, schools, and pretty much every other type of user. With this extender among your gear, a couple of Alura zoom lenses can be used as multiple lenses with only little or no change in the optical quality.