Arri-news 2014

WHAT IS LENS DATA AND WHAT IS IT GOOD FOR? Lens data is a continuous stream of information about the focus, iris and zoom settings of a lens, as well as the depth-of-field range. It can be displayed on the Wireless Compact Unit WCU-4, giving full remote control to the focus puller even if the camera is out of sight. With ALEXA Plus and Studio cameras, lens data is also viewable on the monitor outputs, viewfinder and side panel display, so the DP can see what the lens is doing from anywhere on set. Additionally, lens data is an important prerequisite for lens mapping and focus tracking. As well as offering on-set benefits, ARRI lens data reduces the time and effort required to achieve complex visual effects by helping to match a virtual lens to the recorded image in postproduction, or even driving the virtual lens optics in a real-time VFX system on set. Frame-accurate lens data is recorded in-camera by any ARRI digital camera equipped with a PL-LDS mount, or recorded by the Universal Motor Controller UMC-4 with any other camera, from any manufacturer. Lens mapping is the mapping of a lens focus scale to a predefined, pre-marked focus ring. This saves time in prep, as the camera assistant does not have to mark up an individual ring for each lens. It also simplifies work on set, as the five pre-marked rings will cover multiple different lenses. With fewer rings, the focus puller will get familiar with them faster, allowing more intuitive focus pulling. ARRI’s Electronic Control System delivers lens data that improves workflows in post and on set, with any camera and any lens THE BENEFITS OF LENS DATA Focus tracking is a continuous, automatic focus adjustment based on the distance measured by an ultrasonic measuring device such as the UDM-1. Der Minister - VFX by Stargate Studios 24 ARRI NEWS