Designed for high-speed sequential shooting, the Olympus FL-900R Electronic Flash is a high-intensity flash that features 100-lux LED lights. The flash has a firing angle of approximately 70° and a coverage angle of 24-200 mm. Its bounce angles are up to 90° upwards, up to 7° downwards, and up to 180° right and left. The flash-emission period ranges from nearly 1/20000th of a second to 1/500th of a second. This flash can be used in harsh environments, where there may be dust and moisture. Charged by 4 AA batteries, this Olympus flash has a GN rating of 58.