Just a note on settings. Remember, this is medium format thus the camera setting will differ from that of a 35mm camera. We routinely use 2-flash units but sometimes 3. The f/stop is normally set at either f/8 or f/11 for the GF120. While we've included the shutter time please remember that this is the total time between opening the shutter, pressing the drop button then closing the shutter. One hand holds the shutter release - one hand is pressing the drop button on the phone. The timing in reality is much faster.
We'll be doing more as the summer progresses so please stay tuned. Feel free to leave a comment or question and we'll get back to you.
Sandy & Don