Bob,
To my knowledge the various PhaseOne backs do not have a separate interface capability, that works specifically with the CW winder and the 503CW body. The Hasselblad CF/CF-II series backs allow you to specify several difference interface configurations for several V-Series cameras (ie. 200/2000-Series, 500-Series, 503ELX, 505ELD, CW-Winder, SuperWide, etc.). This makes it possible to take advantage of the various interfaces found on each model. (You might recall some of our previous conversations). More than likely, the PhaseOne back will need the sync cable coming from the lens, as you are accustomed. Maybe a PhaseOne rep can chime in and give some more info.
If you need one of these specific Hasselblad "exposure cables" let me know, as I have some available that you could try out.
Regards,
Jordan Miller
Anyone know if the "exposure cable 503cw" that attaches from a 503CW grip to a Hassy CF back will work with a Phase back?
TIA