Canon Speedlite EL-100 User Manual page 17

Leaving the Mode dial set to < a > when using cameras that support
o
auto flash firing may prevent full charging and firing during shooting,
depending on shooting conditions or the state of the battery.
Quick flash is not available under these conditions.
o
• Cameras that do not support E-TTL II/E-TTL
• Optical wireless flash photography
• Stroboscopic flash
• Manual flash photography with flash output outside the range 1/4 to
1/128
With the Mode dial set to < a >, aiming the flash head straight ahead is
o
recommended. Switch to suitable flash coverage for the lens' angle of
view (p.15).
With cameras that do not support auto flash firing, the flash will always
o
fire when you shoot with the Mode dial set to < a >.
Turning on the Power
17