What is the Frame Line & Lens Illumination Tool?
ARRI's Frame Line & Lens Illumination Tool (FLLIT, currently Version 5.3.0) is a two-in-one webtool for creating custom frame lines for ARRI cameras and a verifying tool to see how different lenses illuminate the cameras' sensor, your selected recording format or target aspect ratio.
Please delete your browser cache from time to time to ensure you are running the latest version of the tool.