you can use the tech lenses now with leaf shutters, there is no zero latency (may never happen, who knows) so you need a wake up cable.
By error, I recently left my IQ4 on for 2 hours, (for some reason it did not auto power off after 15 minutes as set), on my Arca. Back did get warm and tech camera did get warm, but back never "shut off" due to heat, so I assume zero latency may work after all. Just need Phase to get around to programming it n the firmware.
Phase is shipping a 12 pin adapter, (L shaped cable) that works in the back, (old one was 8 pin), and you would plug that into the standard Phase wake up cable.
The only difference is that with no zero latency, you have to wake up the back each time.
Paul C
Paul C