Sekonic's new LITEMASTER PRO L-478-U-Series meters are the world's first touch-screen-operated light meters and have unique, must-have features for both still and motion story tellers. Their compact size is both instantly familiar and comfortable to use. The large LCD (2.7-Inch) displays ambient, flash, cine and a host of other information in a clear and understandable way. Settings are made by simply touching or sliding a finger over the screen. Amazing Must-Have Features L-478D-U for Still Photographers . Full featured Ambient-Flash modes including new T-F mode. Measure, compare, and mix ambient and flash displayed on a color, touch screen for beautiful, controlled, results. DTS Exposure Profiling matches the meter to the performance of your camera. Precise exposure and lighting starts with precise, repeatable metering. L-478D-U for Filmmakers Cine/HD Cine modes for today's HDSLR and Video Cine cameras. Effortlessly switch between HDSLR and Cine for exact exposure settings in exact increments for both. Infinite frame rate and shutter angle selection. Create special settings for special applications. Video cine cameras are becoming boundless. Metering should be too.(requires separate Sekonic or X-rite exposure targets and 5-degree finder for L-478-U). L-478D-U for Filmmakers Unique, light-source filtration compensation mode. Finally, precise control lighting using industry standard CTO/CTB/ND types at the touch of a finger. Illumination measurement and extended ISO range. Lighting design and exposure in a single tool. ISO and exposure settings to match today's digital cameras. L-478DR-U has same features and adds: Pocket Wizard triggering and Flash Power Setting w/Controls radios. Control Nikon, Canon and select studio flashes with a touch of a finger.