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Canon 580ex II strobe issue
This depends on the mode you have selected on the flash gun. If you have Multi selected you will get the strobe effect. The strobe effect is all so present to help the flash set the correct exposure. It's not a problem with the flash or the camera. Spend some time reading through the flash gun manual. I have to admit it is not always clear. Also try Youtube for a video.
on Sep 23, 2017
I have a canon 60d
Usually if my flash isn't firing I check to see if the flash is mounted into the hotshoe properly. I take it off the camera, put it back on and tighten it down then test it.
If that doesn't work then check the display of the flash and see what mode you are on or if the display is flashing. If it is flashing then the wide angle adapter may be covering the flash which you will need to take off and put back inside the flash. It's that white plastic tab that slides in and out of the flash head.
Hopefully that will fix it.
on Apr 05, 2011
I just purchased a Rebel
It would appear to me that the flash was not locked in position and has move back on its mount which would cause the flash to go into complete manual mode or loose complete communications between camera and flash.
I would suggest shutting the camera and flash off remove the flash first unlock the little locking leaver on the bottom. The 580EX and the 580EX II differ in that the 580EX II has a leaver rather then the huge locking screw. Once apart reinsert the flash unit back into the camera hot shoe making sure that the forward edge of the flash mount is seated as deep into the Hot Shoe as possible and lock it into position. It should click into lock position. Biggest thing I have with my "crew" is when there is a flash installed on the camera they pick the camera/flash unit up by the flash that's a real bad thing cause the flash mount is light plastic and it'll ether break, twist or even unlock the flash enough that the camera falls off of the flash. Pick the assembly up with both hands lens and body. I'm not saying you are doing this but when my crew/working associate's do this I'm not happy.
Although that new switch idea is great it also can be unlocked without noticing.
on Jan 06, 2011
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