Canon Speedlite 580EX II TTL Flash - Answered Questions & Fixed issues
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.
I have a canon 60d
Hello,
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.
-Matt
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.
Diagram
I mounted the Canon 580EX II to my Canon 5D Mark
Yes. If you were able to set a faster shutter speed, then you would not expose the entire frame and would have the shadow of either the first or second shutter curtain (or both) partially masking the frame.
At higher speeds, the shutter is never fully exposed: before the first shutter curtain has finished travelling across the frame, the second one has stated it's journey. All SLR's have this issue and on some older models you could only use a maximum 1/60th of a second.
In practice though, in dark conditions the "slow" shutter speed does not affect exposure as the true exposure will be determined by how much light the flash puts out, and it puts this light out in as little as 50 microseconds (50 millionths of a second) for a modern electronic flash bulb.
Faster shutter speeds can be used successfully, but only with flashes which operate in high speed mode. What they do is to make the flash burst seem longer by rapidly firing the flash bulb many times. This trick can ensure that there is sufficient light to expose the frame at the highest shutter speeds. Shutters which operate at, say, 1/4000 may seem fast, but compared to the speed at which a single electronic flash burst operates, it's an eternity.
I have the 580 ex2 mounted to a eos 5d mark 2.
The shadow is caused by the lens and lens shade if you use one. If you are shooting "up close and zoomed in" regularly, get yourself a ring flash. It fits around the end of the lens = no shadow.
Other ideas::
Light it from below/behind or from the side. Put your 580 on wireless, and place it along side the subject. I recommend a reflector on the side opposite the flash.
Use a piece of white paper as your reflector.
Canon speedlite 580 mounting foot cracked can i
You can try to use a super bonding agent with filler such as 'Q-BOND superglue kit' which is normally sold in many auto shops and can also be found on Ebay: it is not an ordinary superglue and is commonly used to repair difficult plastic and metal parts.
Q-bond also has a very long shelf life even after opening the container as it is almost pure superglue!
Hope it helps.
Reverting to ttl - master flash not firing
Hi Kate,
What camera that you are having problem with those flashes?
Will switching the two have the same problems.
Make sure it is fully pushed forward into hotshoe & locked:-)
Try shooting second current, this will save you the repair costs.
Your exposure compensation was set to zero, but was your flash compensation set at zero?
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I bought a brand new 580 ex 11 flash unit. When I
The grinding noise is the zoom head trying to match the focal length of your lens. A brand new one should NOT grind. It should be silent. It sounds like you got the one that fell off the pallet during shipping. Exchange it for another one.
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