RF-602 problems with D7000

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andrewdolphin

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Wonder if you can help. Following the many good reviews I bought myself a RF-602 transmitter and a few receivers - the problem I'm having is no matter what shutter speed I use and what I set the sync speed to in the camera the flash always fires after the end of the exposure.

Am I doing something wrong? Even if I use a very long exposure the flash still fires after the end of the exposure.

Is the transmitter faulty? Or is this user error!?
 
I'm not sure you can change between front and rear flash with anything other than the built in flash. If you can I've not found the setting so am unlikely to have changed it to rear sync. Besides, surely even with rear sync the flash should occur during the exposure and not after.
 
OK. I see what you mean now. If I connect my flash directly I get those various flash options (and it was set to normal operation). However when I connect the wireless trigger to the hotshoe the camera doesnt recognise that a flash is connected. I assume this isn't right and is probably causing my problems?
 
Tried changing batteries in the trigger/receivers/both? When I've used wireless triggers on my camera it's worked as usual. I was using my su-800 to trigger flash shots on Christmas Day. It worked fine but when I changed location for some reason it wouldn't fire the flashes. I finally opened the battery door of the 800 and rotated the battery a few times. It worked fine then. (I think I may need to get a new battery for it, but you know what I'm getting at.)
 
Batteries are fine. The transmitter triggers the flash/receiver fine. Just completely out of sync as it's not being recognised as a flash.

I might give the "tape over the pins" method a try to see if that is causing an issue.
 
andrewdolphin said:
Batteries are fine. The transmitter triggers the flash/receiver fine. Just completely out of sync as it's not being recognised as a flash.

I might give the "tape over the pins" method a try to see if that is causing an issue.
Click to expand...

What you describe is usually symptomatic of duff batteries in the receiver unit of the triggers or flash, bear in mind just because a set of batteries is "new" or work fine in, say, a tv remote it doesn't mean they will have enough juice to fire a flashgun.

If you have a meter test the batteries in both the triggers and flash to ensure they are in good health, failing that replace them with a new set (non-rechargeable in the RF602 receiver) of decent quality (not poundshop specials).

Taping over the pins or such will have no effect as none, bar the centre pin, have anything to do with the actual firing of the flash. The other pins are only to facilitate the "wake-up" feature on the likes of the Nikon and Canon own-brand flashguns. If you tape over the centre pin then it definitely won't fire :naughty:

Finally, with regard to the RF602 "not being recognised as a flash", if it is triggering at all then the camera is recognising it....
 
Many thanks that has solved it. Despite testing several sets of brand new batteries it still didn't work. Tried some from a different brand and it worked first time. Will dig out my voltmeter later to see what was going wrong.

Thanks again

Andrew
 
Re-chargeables aren't necessarily a good choice for the receivers, as the sudden voltage drop off as they deplete can drop you right in it on location!
Really good quality none re-chargeables, such as duracel etc., will actually pay for themselves when it comes to saving you time faffing around trying to chase down misfires.
 
Re-chargeables run at 1.2v and drop quite quickly as they deplete, whereas none re-chargeables run at a consistent 1.5v with a fairly uniform drop as they deplete.
The 602 receivers use two batteries, therefore run at 3v, so using two re-chargeables only supplies the unit with 2.4v so it's already running below par even when the batteries are freshly charged
 
I've always used rechargables in mine, and not had an issue - however I do appreciate the lesser voltage.

Having said that, I don't really use them with big distances between the TX/RX's so maybe that's something to do with it. I also recharge them after each session.....
 
OutLore said:
I also recharge them after each session.....
Click to expand...
That's more to do with it, I believe. Also, it's very dependant as to how many pops during your session.
If you are under a hundred, and working fairly close to your receivers, you'll likely finish before the voltage drop kicks in.
 
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