Top 20 Canon Speedlite 430EX TTL Flash Questions & Answers

Check If the old batterys did leave oxidation or battery fluid from leaking , could Cause bad connection, as the got Very hot , or 2 check If the New batterys are ok ,

Return it as faulty goods to the retailer

U are to be commended on your industry. Those cameras are a bit-- to take apart. Try a google search for the operation described. You might get lucky with a utube video!

There is no "official" reset option for a 430EX flash. Removing the batteries, discharging any remaining flash and leaving it overnight should clear any issues. If you continue having issues try the flash on another camera to be sure it's not the camera settings you're having an issue with and not the flash. If it is the camera, resetting it to factory defaults through the menu might help.

Check the diffuser is fully retracted. Pull it fully out then all the way back in.

Sunds like it's broken

• did you recently dropped your flash ? if no have you tried replacing batteries ? although you mention that batteries are fully charged if you are using old rechargeable batteries this might have an effect with your flas

try replacing the batteries

Spray a little of WD40 on the Battery Door.

Yes it is. The system is simply measuring the flash to meter the exposure.

Removing the batteries for more than a minute should revert the flash to its default settings. Things like the channel, slave group, FEC, etc. will need to be reset.

Check the hot shoe contacts and make sure they're clean. If that doesn't help, place the flash on your camera, turn both on and reset the camera to factory default through the menu settings. Also make sure the hot shoe on the flash and the camera isn't damaged. Have you tried the flash on another camera?

Try mounting the flash on your camera, turn both on and reset your camera to factory default settings in your camera menu settings.

Check the contact in the batt compartment for obstructions or corrosion etc. No power means broken circuitry - either physical dislodgement of electronic/ electrical parts or damaged electronic components.

Nothing is going on. Your camera is working as designed.Most cameras have an upper limit on the shutter speed when used with flash. This is called the flash sync speed. At speeds higher than this the shutter is never opened completely, and as a result you would get only a narrow slit of a picture.Usually this is not a problem since the exposure is determined almost exclusively by the flash and the aperture. Any action is caught and stopped by the brief flash, not the shutter. The primary reason for controlling the shutter speed is to use a slow speed to allow the background to expose.Your camera may have a special high-speed flash mode that fires off multiple flashes coordinated with the shutter movement. Since you didn\'t say what model Canon camera you\'re using, I can only suggest you check the manual.

Sounds like an internal wiring circuit problem. It's strange that the screen lights up but the flash doesn't charge. You should probably get it checked by Canon.

this is most likely a sync issue. you shutter speed is too high. try lowering it. 1/200 or 1/160 of a second should be fine for your case.

This Canon flash gun does not have a true wireless (radio) trigger. It uses optical light pulse.A user manual can be downloaded from this WEB site.http://support-au.canon.com.au/contents/AU/EN/0300411601.html

it sounds like you are try to SEE the pre-flash. you'll never be able to do it with bare eyes. it's all so quick that to the human eyes it all looks instant. don't worry about it. if it working in TTL mode, it does all the pre-flashes it needs, you just to see them. speed of light is quite incredible :)

please let me know if this helped