Anyone seen fail like this:
ETTL -mode: It flashes seemingly, but screen is basically black (as it would be with same settings without flash)
M-mode: it illuminates decent amount, but any power 1/128 to 1/1 look same brightness
Tried on 2 bodies, same behavior. Tried my 430EX backup, it worked just fine on ETTL mode too. So something with the 580.
Also when flashing (the 580), it doesn't make the normal high pitch charging sound. I'm wondering if the capacitor died or something.
Anyone had similar failure? Know what part might be broken? I know how to open and fix stuff, so I'm planning to open before buying a new one, but it'd help if someone had tips on where to look. I'm guessing the flash during ETTL is the pre-flash, but actual flash is out. The the M-mode might be illuminating at pre-flash brightness maybe?
ETTL -mode: It flashes seemingly, but screen is basically black (as it would be with same settings without flash)
M-mode: it illuminates decent amount, but any power 1/128 to 1/1 look same brightness
Tried on 2 bodies, same behavior. Tried my 430EX backup, it worked just fine on ETTL mode too. So something with the 580.
Also when flashing (the 580), it doesn't make the normal high pitch charging sound. I'm wondering if the capacitor died or something.
Anyone had similar failure? Know what part might be broken? I know how to open and fix stuff, so I'm planning to open before buying a new one, but it'd help if someone had tips on where to look. I'm guessing the flash during ETTL is the pre-flash, but actual flash is out. The the M-mode might be illuminating at pre-flash brightness maybe?