Recognize that this was only my third tethered shoot and I was still experimenting with light and setup and using completely unfamiliar cameras. Sienna has a Sony, and the controller software is different from camera to camera. Canon is the easiest to use followed by Sony and bringing up the rear is Fuji. I haven't used Nikon software yet. I was figuring out that we could get some great photos with window light, but the model had to be brave enough to stand in front of a window while shooting. Sienna is fearless. Others who will see later aren't so brave.