Originally posted by jaad75
So the proper sync time for the HSS is just a calculated delay and the regular sync signal is taken from the remote control input instead of the middle pin (or TTL pins)? The only Priolite "work" to adapt it for Pentax was to calculate the delay and put it in a trigger memory - right?
The latest version of the PrioLite remote does not need the shutter release cable anymore.
It communicates with the camera via the hot-shoe, using the system-specific TTL protocol which also obviates the need to set up delay times.
The above is mentioned (in German) on the
"News" page of PrioLite and you can also see Alex Munoz shooting without a cable.
BTW, I tried using the shutter release port of my K-5 II as an output to obtain a trigger signal for a V6 and lo and behold, it worked!
By setting up an appropriate delay on the V6, I could shoot with HSS at any shutter speed. Unfortunately, there was one catch. After a short while after the exposure the shutter release port of the K-5 II started to produce erratic signals (fast pulsing), triggering the flash accordingly. I could stop this behaviour by tapping the shutter release button once, but I don't think it is practical to do that in real shoots.
Alas, my
approach using a V6 to trigger both camera and flashes (in HSS mode) remains the only practical approach to achieving unlimited HSS with a Pentax DSLR without using dedicated P-TTL equipment (at least with a K-5 II, perhaps other Pentax DSLR models won't produce the erratic shutter release port signal; the K100D locks up when a V6 is connected, i.e., doesn't work either).