The Fujifilm EF-X20 Shoe-Mount Flash for Fujifilm X Series Cameras is a dedicated shoe-mount flash designed for X series cameras. This compact (1.4 x 2.3 x 1.9") and lightweight (3.5 oz) flash can be used in TTL mode. It also offers a built-in wide diffuser that allows it to be used with a 20mm (35mm equivalent) lens, as well as a built-in slave mode with pre-flash and non-pre-flash control available. Manual flash output can be selected from full power to 1/64 power. The EF-X20 runs on 2x AAA alkaline or Ni-MH batteries (not included).
| Mount | Shoe |
| Guide No. |
20' (6.10 m) ISO100 at 50 mm position
1
Please Note:Guide number of 12 when wide panel is used close |
| Vari-Power | 1/1 - 1/64 |
| TTL Dedication | Yes |
| Bounce Head | None |
| Swivel Head | None |
| Coverage | 20 mm (Full frame) |
| Zoom Head | None |
| Recycle Time | Approximately 5 - 6 seconds |
| Compensation | -1 EV to +1 EV (in 0.33 EV steps) |
| Power Source | 2x AAA Alkaline, Rechargeable Ni-MH Batteries |
| Dimensions (WxHxD) | 1.4 x 2.3 x 1.9" / 3.56 x 5.84 x 4.83 cm |
| Weight | 3.53 oz / 100 g |