The Sekonic L-358 handheld light meter measures ambient or electronic flash lighting. Readings are displayed in three ways: a) combined readings of flash and ambient, b) percentage of flash in the total exposure or c) simultaneous display of flash, ambient and combined readings on the analog scale. An easy-to-read illuminated LCD panel directly displays full, 1/2 or 1/3-stop shutter speeds or apertures and exposure/calibration compensation.

This kit also includes a Digital Radio Transmitter Module, which allows remote triggering of up to four flash units from as far away as 100 feet.