I use an iPad mini via Air Display when shooting tethered to a laptop so I can see what assistant sees on laptop, but need to watch it. The contrast and saturation on the iPad, due in part to glossy screen, will be far different (stronger) than actual capture- an issue if ensuring against veiling flare when using white seamless. Only good for composition, etc. Looking for better solution myself. May even run cheaper second profiled laptop via air display.