Sekonic LiteMaster Pro L-478DR-U-EL Series Light Meter for Elinchrom EL Skyport System (401-475) 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. Radio triggering and Flash Power Setting w/ flashes with Sky port receivers. Flash Group selection w/ radio receivers and flashes using the Strata protocol/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. 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. Exclusive 3-Year USA Warranty.