I'm just designing such a device (based on the need from the
last years photo projects) for me and my friend.
It will be a processor controller device and as "suggested"
it will use a delay to trigger the slower camera(s).
The accuracy depends on the ability of the cameras to trigger
with the same lag time (which will be measured by the device
during test shots by some means). I assume (and hope) the lag
time of each one camera body will be the same (+- a couple
milliseconds) between successive shots if used in MF and ME
(manual exposure).
Now:
Do you have good ideas (more of them) about what to use to
drive the remote switch pins:
relay, optoisolator, just a buffer IC or something else?
I quess the remote switch signals need to be grounded quite
well so I'm not sure if e.g. transistors (driven by the CPU)
would be ideal for this purpose?
Maybe the analog swicth IC would do the trick because it doesn't
(?) really matter if the ground is common and I bet the EOSes
are quite well protected.
VP
>Next: I have EOS1n, EOS RT and EOS 50e ... their shutter lag times
>and general response times are not identical. I would not be
>surprised if there was a finite delay .. (note: I'm talking about
>fast angular shifts in the subject across the view. If I could afford
>a matching body (to either of the above) I would be less sceptical.
>Anyway: thanks to all who have replied so far .... sadly no url of a
>chap who actually makes and sells the exact item though ;o(
And:
>I can't imagine any reasonable way to get the shutters
>to fire in sync using bodies with differing lag times.
>No matter what solution you use, you're going to be
>triggering the shutter release simultaneously, not theshutter.
>While I suupose it would be possible to build an
>electronic device that lets you insert a variable lag
>time before one of the two bodies is tripped,
>adjusting it would be a potential nightmare of trialand error.
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