645z High Speed Sync (HSS) working with Profoto B1

It is an exciting day :) I got my Profoto B1 system to use High Speed Sync when fired from my Pentax 645z!

Here are the details:

Profoto Canon Transmitter: HSS, Manual
Cactus V6II: TX Mode, Camera System: Pentax, Flash System: Canon, Flash Profile: Auto Canon

Video of test:

Image files from Test:


ISO 100, f/8, 1/400


ISO 100, f/8, 1/800


ISO 100, f/8, 1/1600


ISO 100, f/8, 1/3200


ISO 100, f/8, 1/4000