building usb-remote-cable

[Super_Dork_42]

Well, fvdk. I have decided to buy that light from you. I am sick of spending money only to find another light that doesn't work. If you could send me an e-mail with instructions on how to get the payment to you, I would appreciate it.

[Super_Dork_42]

Got the light. Thanks fvdk.

[fvdk]

Got the light. Thanks fvdk.

You're welcome.

Frans

[colinbm]

Hi Frans
I haven't got the remote yet but should be next week.
I have some SLS-006 Mini Slave Flash units.
Can I have the remote trigger the SLS-006 Mini Slave Flash unit on the second press of the remote when it triggers the shutter release too, Please ?
Cheers
Col

[fvdk]

Hi Colin,
No, that would require a completely different circuit like this: http://stereo.jpn.org/eng/sdm/pcb.htm
I am thinking about incorporating something like that in my PCB's but have not yet found the time to do so.

The next version of SDM will probably have a function to disable the pre-flash so you might be able to use the slaves without additional hardware.

Frans

[colinbm]

Thanks Frans
I don't have pre-flash ?
The remote should give one press for focus & second press for shutter release.
So I was wondering if the slave could be hard wired to go off at the second press ?
Cheers
Col

[fvdk]

I don't have pre-flash ?

In auto mote, as far as I know, every Canon P&S has pre-flash.

The remote should give one press for focus & second press for shutter release.
So I was wondering if the slave could be hard wired to go off at the second press ?

No that's not possible.

Frans

[colinbm]

Thanks very much Frans
I have now got the new remote & USB plugs.
The remote is fantastic & compact.
The USB plugs are the best & smallest I have seen & will allow just the cable space between the cameras.
Cheers
Col

[colinbm]

Hi Frans
Just some battery info.
http://en.wikipedia.org/wiki/List_of_battery_sizes

You have used the AG1 alkaline battery for this remote. They are fine.
The alkaline battery has 1.5v & 13mAh & a tapering discharge.
The silver oxide battery has 1.55v & 20mAh & a flat discharge.
May I suggest SG1 silver oxide batteries, as they keep the voltage constant to the end, which I think is important in this application as the cameras are sensitive to lower voltage.

Cheers
Col

[fvdk]

Hi Frans
Just some battery info.
http://en.wikipedia.org/wiki/List_of_battery_sizes

You have used the AG1 alkaline battery for this remote. They are fine.
The alkaline battery has 1.5v & 13mAh & a tapering discharge.
The silver oxide battery has 1.55v & 20mAh & a flat discharge.
May I suggest SG1 silver oxide batteries, as they keep the voltage constant to the end, which I think is important in this application as the cameras are sensitive to lower voltage.

Cheers
Col

Hi Col,
I tested the AG1 batteries with a timer remote and stopped after it had taken more than 20.000 pictures so for normal applications they are more than sufficient. But you can of course use silver oxide batteries if you want.

Cheers,
Frans

[colinbm]

Hi Frans Thanks
You must have had a sore finger after all that testing :-))
Cheers
Col

[fvdk]

Hi Frans Thanks
You must have had a sore finger after all that testing :-))
Cheers
Col

That's what the timer remote is for, with the camera on an AC adapter I only had to start the timer 

[colinbm]

Hi Frans
If I have a wired shutter release remote (with CHDK loaded on the camera) & the SLS-006 Mini Slave Flash unit also hard wired to the remote, can I use a centre off toggle switch to switch one side to focus & the switch the other side to trigger the shutter & the SLS-006 Mini Slave Flash unit together ?
Cheers
Col

[fvdk]

Hi Col,
It is not exactly clear to me what you mean. Are you using a single camera or two for stereo 3D photography?

With just one camera, it might work as you can than configure it to release the shutter on the second press, as soon as the voltage is detected.
For 3D photography, the shutters are released when the voltage is dropped in order to get perfect synchronization and in that case, I see no other possibility to synchronize the flash other than the circuit referred to earlier.

Frans

[colinbm]

Thanks Frans
The problem that I am trying to solve at the moment is :-
The single IR camera, I would like to use the SLS-006 Mini Slave Flash unit with a IR pass filter to give a IR flash light. I have made a black cap (surround) with a IR pass filter (Hoya 72R) mounted on top. The SLS-006 Mini Slave Flash unit, now needs to be triggered with the remote shutter release. I will not be using the cameras flash.
The SLS-006 Mini Slave Flash unit has a test button, this could be used to make a closed circuit to trigger the flash ?
Cheers
Col