Imedions on 580 Ex II

[hammie]

Anyone have any experience with Imedion life span. I got 500 ++ flash with bounce and stofen before I notice a 1- 2 sec lag in the recharge time. Not too sure whether the battery is dying soon or the protection circuit kick in. Anyway, I just change the batteries and they felt warm.

[Benosaurous]

i haven hit the 500 count yet haha. but did u accidentally on the 2nd sync flash function?

[hammie]

Nope, I was adjusting FEC thoughout the shoot. I would have noticed the triple arrow

[Headshotzx]

500+ shots seem to be correct. If you're using it indoors with low-light, then it explains why more power is needed.

[Snoweagle]

My record on a set of eneloops is 900+ shots before it becomes completely drained. Used indoors at ETTL mode.

[Headshotzx]

Originally Posted by Snoweagle My record on a set of eneloops is 900+ shots before it becomes completely drained. Used indoors at ETTL mode.

Whoa you serious? I only did managed bout 600 outdoors with eneloops.

[Snoweagle]

Originally Posted by Headshotzx Whoa you serious? I only did managed bout 600 outdoors with eneloops.

It's true. I was shooting Big Boyz Toys last year and started with a set of fully charged Eneloops and died at 928 shots.

[Headshotzx]

That's nice. A toy convention? Should've been pretty lighted up adequately already right?

[Snoweagle]

Originally Posted by Headshotzx That's nice. A toy convention? Should've been pretty lighted up adequately already right?

Nope, it's more of a mature exposition. Lighting is still a bit low though.

[calebk]

Originally Posted by Benosaurous i haven hit the 500 count yet haha. but did u accidentally on the 2nd sync flash function?

What has 2nd-curtain sync have to do with slower recharge?

[Headshotzx]

Originally Posted by calebk What has 2nd-curtain sync have to do with slower recharge?

Slower recharge = lack of power from batteries
lack of power from batteries -due to the fact that-> 2 main flashes (1 pre, 1 2nd curtain) are going off?

[shahrulesa]

I went through two to three sets of eneloops and ReCyko normally - around 1000 shots.

[metalgear]

Originally Posted by shahrulesa I went through two to three sets of eneloops and ReCyko normally - around 1000 shots.

any difference between the 2 brands ?

[calebk]

Originally Posted by Headshotzx Slower recharge = lack of power from batteries lack of power from batteries -due to the fact that-> 2 main flashes (1 pre, 1 2nd curtain) are going off?

Either way you have two flashes going off as long as you are on TTL, 1st curtain sync or 2nd curtain sync. You will have a pre-flash and the actual flash during the exposure.

The difference between 1st and 2nd curtain sync is that for 1st curtain sync, the flash fires right after the shutter opens, while for 2nd curtain sync, the flash fires right before the shutter closes, the latter of which is more suited for catching motion trails.