I had always heard here that triggered recording was not reliable, but I have never seen such a clear cut case of it as I have now with a camera I have been testing in a temporary location. I have it set up near floor level in a hallway of my basement. I am still using BI4 with the triggering sliders set fully leftward for min. contrast and min. object size with the minimum duration set to 0.1 sec. When I reviewed the recordings I was surprised to see that I am always walking past the camera in the same direction. Apparently going in the other direction does not trigger the camera! Maybe I tend to walk slightly faster in one direction? It seems crazy that my giant feet could walk right in front of this camera and not trigger it. I am not sure if it is plausible that I can walk across the FOV in less than 0.1 sec.