Using the external flash
X (Flash X-Sync) Mode
The shutter speed is locked at 1/180 second. Use this when using an External flash that does not automatically change the shutter speed.
1. Rotate the Mode dial ( ) to select X.
2.Connect the external flash to your camera.
-For more information about using the external flash, refer to the user guide on external flash.
3.Now, the flash fires as soon as you press the shutter button.
● Turn the rear dial ( ) to adjust the aperture value.
● Press the green button () to retain the shutter speed at 1/180 sec and automatically adjust the aperture.
●When the sensitivity is set to (Auto mode) and exposure mode is set to X (Flash