General Operation
Power
Select a fresh set of 4 AA cells of the same type, such as NiMH, NiCd, or alkaline. Slide back the
non-removable cover, and swing it up on its hinge to expose the battery compartment. Check the
polarity diagram, then insert the AA cells. Swing the battery cover down, and slide closed.
Turn the flash ON. A whirring sound indicates charging. The ready lamp glows GREEN to indicate
approximately 50% charge, and RED to indicate about 80% charge. The flash can be used for
photography if the ready lamp is glowing, particularly if you do not require full flash intensity.
If there is no READY light within 10 seconds, the battery might be exhausted, so replace the
batteries. If there is still no READY light with fresh batteries, send the flash for service.
Rapid Fire
"Rapid Fire" is the name given to the feature where the Speedlite indicates that it is ready when it is
partially charged. This allows the photographer to take photos in quick succession, providing that
only part of the flash capacity is used for each shot. You will enjoy greater success with "Rapid
Fire" flash if you use more sensitive film (e.g. ASA 400 instead of ASA 100), use direct instead of
indirect or bounced flash, and shoot from a closer rather than further distance.
Mounting
Turn the flash power OFF.
Loosen the lock nut, and make sure that the locking pin is retracted. Slide the flash all the way
forward into the camera hotshoe. Tighten the locking nut, and test that the flash is locked securely
by gently trying to slide it out of the hotshoe.
Turn the power ON to charge the flash.
Note: The locking pin is used to help hold the flash securely in the hotshoe of nearly all EOS
cameras. Since the locking pin is spring loaded, you can still mount the flash on a standard shoe
(e.g. studio umbrella holder or macro flash bracket).
Removal
Turn the flash power OFF.
Unscrew the locking nut FULLY. When the locking pin has retracted, slide the flash out of the
hotshoe. Be careful not to damage or dirty the electronic contacts in the hotshoe.
Note: The flash could be impossible to remove unless the locking pin is fully retracted.
Reset
To clear all user settings on the flash, turn the flash ON, then open the battery compartment cover.
Wait for the LCD to go blank, indicating that the power is completely drained. Close the battery
compartment. The flash will power up in default mode (A-TTL, A ZOOM at 35mm, first curtain
sync, single flash, zero FEC).
Power Saver
After 90 seconds of inactivity, the Speedlite will automatically switch to a sleep mode with lower
power consumption. You can wake the flash using any one of several methods: Push down half-
way the shutter button on the camera; Push the TEST button on the flash; Switch the flash POWER
off, then ON; Reset the flash. The Power Saver function cannot be disabled.
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EOS Documentation - 430EZ