Canon 580 EXii Capacitor Discharge

[@rfcdgaf]

Unfortunately still not very clear what exactly you are doing or the setup.

[@lomex_1417]

highly recommend this purchase!

[@Chanvgap]

Just FYI, there is not enough current on the cap to actually do bodily harm. Granted it will scare the crap out of you, and prob hurt a bit, there is no amperage.

[@MatSmithLondon]

This is completely untrue. They can absolutely cause bodily harm. Capacitors store charge not current. The current that flows during discharge depends on the conductivity of the thing it discharges through. If it's through your heart then your body may offer quite some resistance in which case the current will not be huge. Still it only takes 75mA to be able to alter the beating pattern of your heart. If on the other hand your finger is wet and you accidentally touch both terminals with the tip of your finger then not only will you know about it but you'll suffer a pretty vicious burn. You can suffer bodily damage in a variety of ways, direct contact burns, ventricular fibrillation or cardiac arrest. People often say "it's not the voltage that kills, it's the current"... cue many other incorrect statements... it depends how the electric shock kills you as to what feature of the charge flowing through your body did the job. For example, small current for a long time can cause fibrillation, seriously high current quickly can cause cardiac arrest, oh - and it depends on lots of other factors as well such as how much water your cells are currently storing, what clothes you are wearing, etc, whether you are old, pregnant, a child, etc. Either way it's not safe to spread around misinformation like that.

[@amyk3793]

DO NOT use a 500OHM resistor like mentioned in the first part of this video. I used 1000OHM to discharge my flash from a 320V reading and it freaking exploded instantly. My voltage is down to 140v now but a 500OHM resistor cannot handle a 320V load apparently. I did notice you said 3200OHM later in your video, so I guess that is more appropriate and doesn't explode! I'm using a 15k resistor I just found and it is doing a much better job....

[@davidwood5300]

do you have to do the same for the 430 ex ii

[@davidwood5300]

also what is the wire your using please

[@miguellandry462]

I did all this correctly but never was able to detect any voltage.So i thougth the capacitor might be allready discharge. The batteries were taken out 2 weeks earlier. I asked someone who knew more about this kind of stuff and told me these devices it must allready have resistance when batteries are taken out to slowly discharge the capacitor for safety. So i proceeded carefully with disasembling. I touched every components (with safety distance, gloves, pole and fear... haha) and never had no shock. Changed the bulb with success. Anyone can explain me what could have happen? was my friend right? was two weeks enough for the capacitor to loose all it's power?

[@davifernandes5961]

kzbin.info/www/bejne/qJbReamnp7KrjqM How to discharge the capacitor and change it Canon 580EXII Flash Lamp 👆👆👆👆👆

[@rudolfharris4232]

How long does a capacitor hold its charge? My flashgun hasn't had batteries for over a year. Surely there's no charge right?

[@Max-ui1rj]

i saw someone's post about being shocked by flash after 7 years in garage.

[@MatSmithLondon]

Depends on the environment and capacitor type. In the correct conditions yes a cap can hold charge for years.

[@c240amg]

Just get a multimeter and check, if it's 0v, then it should be safe.

[@BenjaminPlocek]

You don't have to pay for the service manual, you can find it here: www.manualslib.com/manual/379083/Canon-580exii.html?page=36#manual

[@FreddyHFK]

Hello! I have a problem with a Canon Speedlite 580EX II. Whatever the mode and settings that I use, it triggers only at maximum power. and the preflash for ETTL mode it triggers at the maximum ori if i press the pilot.. even with the flash off camera using only pilot button for test, in ETTL or Manual mode. in any case it triggers only at maximum power anyone know what is the problem?

[@Max-ui1rj]

people say - the most likely reason - fault IGBT. You just have to replace it.

[@angelisone]

Got the ATG Gold MG8k Flash Kim X3. And sold all my crappy 600EX-RT and 580EX II flashes. James Hendrix, try to get yourself shock with a stun gun. Or work on an ATG Gold 6000ws Monolight of mine when ground it. Then tell me if it doesn't hurt or kill you. Seriously, don't try it.