Product details:

The Fuji EF-X20 Flash is a compact hotshoe flash that was designed to match the stylings of the Fuji X-Pro 1. It offers full TTL communication with +1/-1 adjustments in 1/3-stop increments on all Fuji cameras in the X-series. Throw in manual power adjustment from full-power (GN 20ft @ ISO 100) down to 1/32 flash all set on the manual dial, and it's like shooting in a time warp. If you need an off-camera fill, it also features an optical slave mode that can be triggered by any on-camera or built-in flash. It covers 50mm by default, but also has a wide diffuser for 35mm shooting. It's powered by two AAA batteries (not included), with full recycle of about 5-6 seconds.