Originally Posted by
maltfalc
i'm resurrecting this thread because it petered out before anyone figured out a practical solution, so here's how to do hss on a pacemaker speed graphic (i'm not as familiar with earlier models so no guarantees there).
option 1: get a modern flash with strobe mode, multi-mode, repeating flash or whatever other brands call it when you can set your flash manually to generate a series of flashes. any speed on the fps other than "T" will trigger the flash right before the shutter opens, then all you need to do is experiment with the repetition rate and duration of the series of flashes until you get good overlap between flashes and the correct total number of flashes to last the entire travel time of the shutter.
option 2: similar to option 1, except without strobe mode. instead you attach an encoder disk to the shutter winding key and use that to trigger the flash repeatedly in sync with the movement of the winding key. like with option one, any speed but "T".
option 3: same as option 2, except instead of an encoder disk you use the fps' flash sync circuit and replace the individual staple-like metal contacts along the edge of the shutter curtain with rows of contacts with a spacing equal to say half or a third of the width of their corresponding slit. again, any speed but "T".
option 4: set the fps to "T", it has x-sync and will work with any normal electronic flash. if you practice your double clicks you should be able to get a shutter speed somewhere around 1/10s without jamming the shutter.
Bookmarks