I have read this thread (http://www.apug.org/forums/forum51/5...wont-fire.html) and was going to reply to it, but given it's age I've started this new one.
I have a Hasselblad 501CM, year 2000 according to S\N.
I have recently (yesterday) bought a cable release for it. This one, to be precise (http://www.ebay.co.uk/itm/2908191055...84.m1439.l2649) which is described, quite generically, as 'Locking Shutter Release Cable 40" for Hasselblad Bronica Sinar Olympus Mamiya".
Prior to attaching it to anything, the part that you press at one end has hardly any movement at all, perhaps about 1-2mm and only seems to move the prod at the other end by the same amount. When compared to the picture on eBay, it's visa versa. Suggesting to me that the plunger that your thumb pushes is already fully depressed. Trouble is, if you push the other end, it doesn't go back up!
When I attach it to the camera, which generally requires both hands, it doesn't trigger the shutter of my Blad at all when you press the 1mm of give on the plunger. In addition, I can only wind on the crank about 90%, not the last part. So I can't wind on and shoot. I have to detach the cable, complete the wind, then the shutter will fire with my finger.
I knew this would be hard to explain, so I've created a video and uploaded to YouTube. Forgive the clumbsy film but it demonstrates everything I have tried to explain.
Help! What am I doing wrong?