Speedlight EF-42 is a small Speedlite but packs quite a punch with a guide number of 20. It incorporates Fujis i Flash technology that can automatically adjust the amount of light depending on the shooting condition. Designed out of premium metal to give it a sturdy look the Speedlite has a number of settings options that allows it to be fired as a master or a slave unit.
Exposure setting dial
Enables flash compensation from -1EV to +1EV in increments of 1/3 stops in the TTL Auto mode.
Lever for setting wide panel
Raise the lever to support a focal length of down to 20mm (35mm film equivalent). *
Mounting lock releasing button
Featuring a new mechanism that automatically locks the shoe-mount flash unit when it is placed on the hot shoe.
Wireless slave flash selector
To use the unit as a master flash, set the switch to X.
20(12 when Wide panel is used)
Approximately 5600K at full power
Effective TTL flash range
Manual flash output
1/1, 1/2, 1/4, 1/8, 1/16, 1/32, or 1/64
+1 to -1 in increments of 1/3 EV
Available (per-flash and non-pre-flash control supported)
Two AAA alkaline or Ni-MH batteries
0°C to 40°C (32°F to 104°F)
Dimensions(H x W x D)
36.0 x 59.5 x 50.0mm(1.4 x 2.3 x 1.9in)
Number of uses/Recycling time
**Battery endurance measured using fresh batteries manufactured within the previous three months.
FUJIFILM X-Pro1 / X-E1 / X-M1 / X100S / X100 / X20 / X10 / X-S1