Sekonic 401-302 L-308S Flashmate Light Meter Anniversary Edition for Strobes - Red Smallest digital flash-meter for reflective and incident light readings in ambient or electronic flash lighting conditions Exposures accurate down to a tenth-of-a-stop for both ambient and electronic flash light readings in full-stop mode. At ISO 100, the ambient EV range is 0 to 19.9, flash f/stops range from f/1.4 to f/90.9 with a shutter-speed span of 60-seconds to 1/8000th-of-a-second (1 sec to 1/500th for flash). Pocket-sized, and easy to stow away. The L-308S measures 2.5"W x 4.3"H x 0.9"D (63mmW x110mmH x 22mmD), and weighs in at 3.4 ounces (95g). Includes Lumidisc with pouch, soft case, strap, synchro terminal cap, AA battery and a one year warranty extendable to 3 years total with registration.