Older cameras seldom have shutters with slow speeds (I mean speeds between secs to 1 or 2 secs); however, if the camera is in B mode, it might be possible to release the shutter at those low speeds, at least in theory, if we use a modern camera shutter controlling the shutter speed of the older camera trough a release cable. It is possible to use a modern shutter (with slower speeds) and connect it to the older camera shutter. Has anyone tried something like this ? Or is there already any specific device that can be connected to older cameras in order to allow them to shoot at slow speeds ?
Thanks for any information and/or comment