dormant said:
After some thought, prompted by the ideas here, I realised I already have almost everything required.

The 2.5mm jack plug is a "standard" used for remote shutter release by Canon and some others.

My GPS unit already has a 2.5mm socket that allows a Canon cable release to be used when the GPS is plugged into the D200.

I have a cheap Chinese cable release that uses the Nikon 10-pin plug. This has a 2.5mm socket in the switch unit. It is intended to allow remote cables to be chained together for extra length. The wiring of the Canon standard (here) is normally open-circuit, so the socket can also be used to provide a firing signal (I think).

So this is how it is wired:
- GPS unit on D200
- Cheap Chinese cable release plugged into Fuji IS Pro.
- 2.5mm male-male cable between cable release and GPS unit

All I need to test it is a 2.5mm male-male cable, which I'm sure I have, but can't for the life of me find.

Will let you know how it goes.

MMm does that work ? a cable like the "10 pin - 10 pin" from nikon ( or a knock off from that) does not connect straight pin to pin, but "Cross" allowing either of the 2 cam's to function as a trigger for the other one ...

Flashzebra on the internet has a lot of cords and things for flash.

DaveO

After some thought, prompted by the ideas here, I realised I already have almost everything required.

The 2.5mm jack plug is a "standard" used for remote shutter release by Canon and some others.

My GPS unit already has a 2.5mm socket that allows a Canon cable release to be used when the GPS is plugged into the D200.

I have a cheap Chinese cable release that uses the Nikon 10-pin plug. This has a 2.5mm socket in the switch unit. It is intended to allow remote cables to be chained together for extra length. The wiring of the Canon standard (here) is normally open-circuit, so the socket can also be used to provide a firing signal (I think).

So this is how it is wired:
- GPS unit on D200
- Cheap Chinese cable release plugged into Fuji IS Pro.
- 2.5mm male-male cable between cable release and GPS unit

All I need to test it is a 2.5mm male-male cable, which I'm sure I have, but can't for the life of me find.

Will let you know how it goes.

Sorry, but I forgot that I'd posted this.

Thanks for the good suggestions, which I will explore if I go ahead with this project. FYI, the cameras I want to sync are a D200 and a Fuji IS Pro. I want to take daylight and infra-red photos at the same time, with an accuracy of 1 sec or less.

The MC-23 would probably be the best (and expensive) solution, but I want to have my GPS on the D200 at the same time. Why did Nikon design a universa 10-pin connector but not allow more than one device to be attached?

The Phottix cord mentioned by BrownewellPhoto might be the solution. My GPS has a jack socket that accepts this remote cable (I think). Unfortunately, there don't seem to be any available on ebay right now.

My fallback is to have a remote for one camera taped next to the shutter release of the other.

just ordered two cheap alternatives from e-bay - total $20 with s&h, will let You know once it arrives. no matter how great this cable is, it's worth to try the alternative IMHO.
ps: glad I have d3s, not d700:)

adamz said:
skintbrit - did You go with the original PW cable or get one from ebay? I can't justify to spend soo much on a simple cable, that I'm gonna break sooner or later.

I noticed a cheaper cable for the D3/s being sold, but I couldn't find an alternative for the D700. The D700 needs a "ND" suffexed cable, which I could only find being sold by PocketWizard themselves. You are right the original cables are a crazy price (I paid around £70), but as I had spent a small fortune on 3 TT5's a TT1 & an AC3 controller, not being able to use the remote fire facility seemed a waste of my investment. I did think about buying the third party lead for my D3s (£25) and use that for my remote, but I thought that having the better camera out of my hands was silly idea? You are right Adamz, I'm looking after it very carefully :-) I know it should be for the price, but I must say it seems very well made.

Phottix sells the cords, but they don't have the 10-pin on both ends. One end is a 10-pin with locking nut and the other is a 1/4 or 3/8 3-input (stereo headphones) jack. The jack makes it really easy to stop into any electrical parts store and pick up parts to build random pieces of equipment (sound triggers, light triggers, impact triggers. I think they are about $10 per cable plus shipping.

You could buy two cords, a 2-female to 1-male splitter, a female jack (to plug the splitter into), a length of cable, and a simple button switch. Wires it all together and you'll have a cable release capable of firing a single camera or two cameras simultaneously, all for about $30.

adamz said:
skintbrit - did You go with the original PW cable or get one from ebay? I can't justify to spend soo much on a simple cable, that I'm gonna break sooner or later.

Adamz - I gues your question is about the MC-23 ?
I got an Ebay version shipped from UK, I live within the EU so i cannot tell what your shipping costs would be, but it costed me a total of around EURo 20,- incl. shipping..

Difference with the original cord : No locking nuts on the connector...

skintbrit - did You go with the original PW cable or get one from ebay? I can't justify to spend soo much on a simple cable, that I'm gonna break sooner or later.

adamz said:
yup You can use PWto do the job, but as jerl wrote it's an expensive option, although it works nicely

I use this option, works very well but as others have said, an expensive option if you aren't going to use the other features.

If both camera's have a 10-pin connector ( f.i. D300, D700 etc.) then you can connect them to eachother using a MC-23 Connecting cord ( works for my D300 & D300S ..) .

Here is Nikon's info on that : http://www.nikonusa.com/Nikon-Products/Product/Other-Cords/4653/MC-23-Connecting-Cord.html

I could also give a usage link, but i'nm not sure wether this one would be alowed here, but it would show up if you google for "nikon mc-23 D300 Photographers resource"

yup You can use PWto do the job, but as jerl wrote it's an expensive option, although it works nicely

I've heard that pocket wizards can be used to sync cameras, including with flashes using a remote obviously. I suspect is works very well (although expensive) although I've personally never tried it out before.

I have tried using a Cactus V5 to trigger a camera remotely, and it should work with multiple cameras (which I can't test out) so there is another option for you.

Try a internet search for stereo 3d photography. I have seen many setups that has solutions but I never paid that much attention to.

Unfortunately not all cameras can use the IR. My D300 for instance can not. There are some wireless RF remotes that you can change the channels on and use two on the same channel.

It all comes down to if you need the "Exact" moment or if "close enough" is good enough.

Let us know what you find!

If both cameras respond to the same ML-L3 infrared remote separately and both camera's infrared sensors can see the ML-13 beam, why wouldn't they both fire at the same time?

If they are both the same camera body, even any tiny shutter delay should be the same.

Set up the two cameras you want to use and try it.

Depending on your setup and your cameras, you might be able to pull it off with ML-L3.

I want to shoot with two cameras firing at the same time.

Does anyone make a remote that can control two cameras? Or, better, is there any way to fire one camera from another?