Can someone explain how this happens is it a matter of number of actuations of the unit or is it cause by overheating do to too many shots in a row at a high output setting. These are LED's so they should have a very long life right?
doidinho Goldmember  3,352 posts Likes: 23 Joined Aug 2007 Location: Kenmore, Washington More info | Jul 10, 2008 22:41 | #1 Can someone explain how this happens is it a matter of number of actuations of the unit or is it cause by overheating do to too many shots in a row at a high output setting. These are LED's so they should have a very long life right? Robert McCadden
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DDCSD GIVIN' GOOD KARMA  13,313 posts Likes: 3 Joined Jun 2007 Location: South Dakota More info | Jul 10, 2008 22:46 | #2 doidinho wrote in post #5889718  Can someone explain how this happens is it a matter of number of actuations of the unit or is it cause by overheating do to too many shots in a row at a high output setting. These are LED's so they should have a very long life right? LED flash? Derek
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doidinho THREAD STARTER Goldmember 3,352 posts Likes: 23 Joined Aug 2007 Location: Kenmore, Washington More info | Jul 10, 2008 22:48 | #3 |
DDCSD GIVIN' GOOD KARMA 13,313 posts Likes: 3 Joined Jun 2007 Location: South Dakota More info | Jul 10, 2008 23:01 | #4 No, an LED flash would have be massive to get the amount of light needed. LED's are not a very bright light source. Derek
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doidinho THREAD STARTER Goldmember 3,352 posts Likes: 23 Joined Aug 2007 Location: Kenmore, Washington More info | Jul 10, 2008 23:05 | #5 DDCSD wrote in post #5889825 No, an LED flash would have be massive to get the amount of light needed. LED's are not a very bright light source. To answer your question, a flash tube can "burn out" from too rapid of firing and not allowing it to cool off sufficiently. If doing so does not actually make it quit right away, the excessive heat will stress it and cause it to fail sooner than normal. Pretty much as you figured. Most flash tubes have a very long life span though. Odds are that if it is not misused, it will last almost indefinitely. In some cases it may go out in 100 pops, or it may last for tens of thousands of flashes. Most modern flash tubes are xenon, from what I have read, Wikipedia has a good article on flash tubes. http://en.wikipedia.org/wiki/Flash_tube Hey thanks for thanks for the info. I just wanted to make sure that there were not any special precautions I needed to take to make sure I didn't burn mine out. I don't shoot too fast, so it sounds like I will probally be allright. Robert McCadden
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tim Light Bringer  51,010 posts Likes: 375 Joined Nov 2004 Location: Wellington, New Zealand More info | Jul 13, 2008 05:57 | #6 The flash manual has information about this. Newer flash units have thermal protection, but i'm not sure if it still needs a trip to Canon to reset it or if it's automatic. Professional wedding photographer, solution architect and general technical guy with multiple Amazon Web Services certifications.
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