日本Sekonic测光表L-858D-U-RT-20PW L-858D-U-RT-BR   L-858D-U-RT-EL/PX  L-858D-U-RT-GX RT-BR Transmitter module for broncolor is built-in the meter Incident Metering for Ambient & Flash 1° Spot Metering with Viewfinder Measuring Range: EV-5 to EV22.9 (ISO 100) Illuminance Range: 0.1 lux to 2,000,000 lux Extensive Range of Cine & Video Settings HSS Flash & Flash Duration Measurements Flash Analyzing Function; Extended Range 2.7" Touchscreen LCD; All-Weather Design