I have been looking fwd to using my Pentax 67 with wireless flash. I bought a 165mm Leaf shutter lens and use a cable from the lens to my wireless trigger to action the flash.
I just developed my 1st roll and it seems that 3 shots are as expected and 7 shots show only half a frame with the lower half being black. I remembered to cock the LS lens each time, and the body was set to 'X' on the shutter speed dial.
Is it just a loose connection in my cable? Or are there other possibilities I can investigate.