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andydajo
20th of December 2008 (Sat), 06:09
Hi,
Can anyone tell me if their CP-E3 or CP-E4 buzzes when it's connected to their flashgun, I have mine connected to a 580EX Mk1 and I'm woindering if it's faulty. It works fine other than the buzz.
Thanks.
BPL
20th of December 2008 (Sat), 07:40
CP-E4 connected to a 580EX II, no buzzing.
PacAce
20th of December 2008 (Sat), 10:16
My CP-E4 doesn't buzz either although it does emit a very high pitched sound just like what you hear from the flash when it is charging. If that's the "buzzing" you're talking about, then that's normal.
andydajo
20th of December 2008 (Sat), 11:53
My CP-E4 doesn't buzz either although it does emit a very high pitched sound just like what you hear from the flash when it is charging. If that's the "buzzing" you're talking about, then that's normal.

It's a definate buzz from the charging pack - not the high pitched whine you associate with the flash charging up. It makes the constant noise when as it's plugged into the flashgun and I switch it on, only stops when the flash is turned off. Have taken multiple shots and flash recharge is quick.
SYS
20th of December 2008 (Sat), 15:17
No buzzing coming from mine connected to 580EX.
scottpow
20th of December 2008 (Sat), 23:03
No buzzing on my CP-E3, my guess its the flash
malla1962
21st of December 2008 (Sun), 04:06
John, my CP-E3 makes a slight noise but you need to put it to your ear to here it.
cdifoto
21st of December 2008 (Sun), 04:17
The buzzing you're hearing sounds a bit like bee on its death bed, no? If so, my CP-E3 buzzes when plugged into a 580EX or 580EX II. It's so faint, you have to press your ear against it to make it out when it's in the nylon case.
malla1962
21st of December 2008 (Sun), 04:20
The buzzing you're hearing sounds a bit like bee on its death bed, no? If so, my CP-E3 buzzes when plugged into a 580EX or 580EX II. It's so faint, you have to press your ear against it to make it out.Not tried mine on a 580mk2 but yes a bee on its death bed on my mk1, I will tyr it on a mk2 later.
andydajo
21st of December 2008 (Sun), 09:05
Cheers for the info guys.
tim
22nd of December 2008 (Mon), 04:27
Both my CP-E3 and CP-E4 emit a rapid ticking when they're connected to either my 550 or 580EX. It has to be within 30cm of my ear for my to ear it. The "recharge" whine is much louder, and they both seem to work and have for a couple of years and a few months respectively.
andydajo
22nd of December 2008 (Mon), 11:41
Both my CP-E3 and CP-E4 emit a rapid ticking when they're connected to either my 550 or 580EX. It has to be within 30cm of my ear for my to ear it. The "recharge" whine is much louder, and they both seem to work and have for a couple of years and a few months respectively.


Yeah,
That's exactly what mine is doing - seems normal so I'm happier now.
Thanks Tim.