Canon 270EX II manual TTL II Flash Range with 18-55mm EF-S f/3.5-5.6 is Zoom, Auto Power Off

E-TTL II Flash Range with 18-55mm EF-S f/3.5-5.6 IS Zoom

ISO	Normal Position			Extended Position
	18mm	55mm	18mm		55mm
100	1 – 6.3 m	1 – 3.8 m	—		1 – 4.8 m
	3.3 – 20.6 ft	3.3 – 12.9 ft			3.3 – 15.9 ft
200	1 – 8.9 m	1 – 5.5 m	—		1 – 6.8 m
	3.3 – 29.1 ft	3.3 – 18.2 ft			3.3 – 22.5 ft
400	1 – 12.6 m	1 – 7.9 m	—		1 – 9.6 m
	3.3 – 41.1 ft	3.3 – 25.7 ft			3.3 – 31.8 ft
800	1 – 17.7 m	1 – 11.1 m	—		1 – 13.6 m
	3.3 – 58.0 ft	3.3 – 36.3 ft			3.3 – 45.0 ft
1600	1.5 – 25.1 m	1 – 15.7 m	—		1 – 19.3 m
	4.9 – 82.6 ft	3.3 – 51.6 ft			3.3 – 63.6 ft

4.Point the remote control transmitter on the front of the 270EX II toward the front of the camera, then press the remote release button. The camera will fire two seconds later, which allows time to reposition the 270EX II to illuminate the subject. The on-camera master flash will trigger the 270EX II you’re holding to fire during exposure.

*Currently available only on EOS Digital Rebel, Rebel XT, XTi, XSi, T1i, T2i, T3i, EOS 7D, and 5D Mark II.

Auto Power Off

The 270EX II will automatically shut off after 90 seconds of idle use to save battery power. Press the camera’s shutter button to turn the unit on again. Cancel the auto power off function when using the 270EX II as a wireless slave by pressing the [✻] button on your camera.

Wireless E-TTL Flash Operation

The “Slave” function allows the flash to be triggered wirelessly when used off-camera with an EOS DSLR or Speedlite with master flash function. The slave flash must be positioned off-camera and must be within a range of 33 feet (10 meters) from the master flash unit.

You can use the 270EX II regardless of the transmission channel (1 to 4) on the master unit. The slave ID is set to group A and cannot be changed to group B or C.

1.Set the camera, ST-E2 transmitter or 580EX II Speedlite as the master unit.

2.Set the 270EX II as the slave unit by moving the power switch to <SLAVE>.

3.Attach the 270EX II to the mini-stand provided with the flash case and position the flash. When outdoors you must have the wireless sensor aimed directly toward the master unit. When indoors the sensor will react to reflections from nearby walls.

4.Release the shutter.

Wireless Shutter Release

The flash release function uses the 270 EX II’s built-in infrared transmitter to remotely fire compatible cameras* with a 2-second delay. You can choose whether to use the 270EX II as a wireless trigger alone or whether to also use it as a wirelessly triggered slave flash.

To trigger camera only

1.Set the camera* to its remote control shooting mode.

2.Set the 270EX II power switch to <ON>

3.Point the remote control transmitter on the front of the 270EX II toward the camera, then press the remote release button. The shutter will release two seconds later. The 270EX II will not fire.

To trigger camera* + wireless flash:

1.A wireless E-TTL "master" flash or ST-E2 transmitter must be mounted and active.

2.Set the 270EX II power switch to <SLAVE>.

3.Set the camera* to Remote/Self-Timer mode.

AF-Assist Beam

To facilitate autofocus for dark scenes, the 270EX II may fire repeatedly when you press the camera’s shutter button halfway. Its maximum AF-Assist range is approximately

4 m/13.1 ft., depending on the ISO setting and maximum aperture of your lens.

Modeling Flash

Pressing the camera’s depth-of-field button will fire the flash continuously for 1 sec. This enables you to preview lighting effects on the subject. It is most useful when the flash is positioned off-camera.

Do not fire the modeling flash more than 10 consecutive times. If you fire the modeling flash 10 consecutive times, allow the Speedlite to rest for at least 10 min. to avoid overheating and damaging the flash head.

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