Canon EOS 700D Instruction Manual page 310

External Speedlites
Canon Speedlites Other Than the EX-series
With an EZ/E/EG/ML/TL-series Speedlite set in TTL or A-TTL
autoflash mode, the flash can be fired at full output only.
Set the camera's shooting mode to <a> (manual exposure) or
<f> (aperture-priority AE) and adjust the aperture setting before
shooting.
When using a Speedlite that has manual flash mode, shoot in the
manual flash mode.
Using Non-Canon Flash Units
Sync Speed
The camera can synchronize with compact, non-Canon flash units at
1/200 sec. or slower shutter speeds. Use a sync speed slower than
1/200 sec.
Be sure to test the flash unit beforehand to make sure it synchronizes Be sure to test the flash unit beforehand to make sure it Be sure to test the flash unit beforehand to make sure it
properly with the camera.
Cautions for Live View shooting Cautions for Live View shooting Cautions for Live View shooting
A non-Canon flash will not fire during Live View shooting A non-Canon flash will not fire during Live View shooting. A non-Canon flash will not fire during Live View shooting
If the camera is used with a flash unit or flash accessory dedicated to
another camera brand, the camera may not operate properly and
malfunction may result.
Do not attach a high-voltage flash unit on the camera's hot shoe. It may
not fire.
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compact, non-Canon flash units at compact, non-Canon flash units at
peeds. Use a sync speed slower than peeds. Use a sync speed slower than