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<p>Thank you. I tried but I could not see the movement inside the camera and the TC. In fact, I could not see how the 503CW screw driver rotated. It rotated so fast that I saw nothing. I simply saw the screw driver stopped at different positions for cocked, mirror locked-up, and shutter released.</p> <p>It seems that my original guess is correct: "If there is something in the lens side of the adpater to probably HOLD the cocking shaft of the TC, the adapter is likely to work as a camera."</p> <p>Sorry I still don't understand why mounting a lens to a TC not on camera doesn't trigger the shutter. When the lens is mounted to the TC, the pin is engaged. The cocking shaft of the lens is now unlocked by the pin and can't be hold in position by the TC not on camera. Why isn't the shutter released when mounting and mounted?</p>

<p>The screw driver and the pin in the front side of the 1.4XE look the same as those in the mount of the 503CW. Removing a lens from a camera won't trigger the shutter. Why does removing a lens from a TC not on camera trigger the shutter? They look being of the same connecting mechanism.</p> <p>And, while mounting a lens to a TC not on camera won't trigger the shutter, why does removing trigger the shutter?</p>

<p>As there is nothing in the lens side of the adapter, mounting a TC to the adapter and then a lens to the TC is like directly mounting a lens to the TC in the air. If there is something in the lens side of the adpater to probably HOLD the cocking shaft of the TC, the adapter is likely to work as a camera.</p> <p>Isn't the accidental release of lens shutter (when disconnecting a lens and TC combo) due to the movement of the cocking shaft probably in the wrong direction?</p> <p>And, I guess the F position may act as a clutch to disengage the lens shutter from the cocking shaft so that with a 200 series camera users can cock the focal shutter without again cocking the lens shutter that is already cocked.</p> <p>This is why I asked if the F position might help. The cocking shaft was moved during disconnection of the lens and the TC combo in the air, but the movement now won't trigger the shutter as the F position serves as a clutch that has disengaged the shutter from the cocking shaft. Wrong? Why the lens shutter is to be triggered when disconnecting the combo?</p>

<p>We all know that the Hasselblad teleconverter needs to be put onto a Hasselblad body first and then we can put the Hasselblad tele lens onto the teleconverter. But if I intend to use the CFi/CFE lens and the 1.4XE TC combo adapted to a MILC, what can I do? Of course, I don't like to carry a 503CW just to assemble and disassemble the combo.</p> <p>If I put a lens to the TC or remove a lens from the TC without a camera, what will happen? Will this damage the cocking mechanism in the lens or TC? I'm afraid there is more risks than simply triggering the shutter that I can cock again with a coin. Will setting the shutter to the F position help?</p>