Yes, we changed settings. We wired the Digiback directly to the shutter on the lens, changed the settings on the DigiBack from strobe
to 500 to CW — consistently made capture out-of-sync Process seems to
be — mirror and shutter go through normal process when winder button
on handle is depressed and released —it appears a capture is made or
attempted by DigiBack. If you repeat the process but HOLD THE BUTTON DOWN, you see the mirror swing up, shutter open and close and hear the DigiBack attempt an out-of synch capture, when the BUTTON on
the WINDER is released, the DigiBack makes another capture.
Totally normal cycle when film back was on, off.... Tried with different lenses — it is consistent.
AND, some how during the shoot before I knew the cycle—I was able to
time my exposures (ƒ11.5 @ 15 under strobes) so that if I hit the winder button, quickly two or three or four times (press and release), I'd get a (more or less) normal capture. Else, captures were magenta, or looked like visions from an LSD trip. This was before the post shoot analysis that revealed the capture was not in- synch with the shutter opening but occurring on the RELEASE of the Winder Button.
BTW Getting a decent exposure was also a feat, I might proudly add,
that was not reproducible by the tech. Meaning the tech could figure out what the camera was doing, but couldn't time it to get a decent exposure....
I want to make that test — the ONLY test not made. But the dealer has currently "withdrawn the back from sale to me" because of this problem
Thank You for your help —Hasselblad is closed as is the dealer. I'm
hoping I can at least have enough info before Wed for them to at least try the test — what is your thought on the possibility that since the body/winder have been dormant for several months and the batteries in the winder that old, a small voltage drop might be the simple route of the problem—it is throwing things off just a tiny bit, but for the capture back, that is enough to confuse the timing —
it does seem as if the back is getting a signal to capture on the push down, and does so out of synch with the shutter, then when the button is released, it makes another capture.
So, when I was pushing the winder button quickly in succession — it
was probably the second capture that was making the exposure when the
shutter opened the second time (on the second push down)
Trey Scott