[quote=dfgalletta;16463794]OK, here is my shot, as you wanted it: 1/6 second, F5, 1600 ISO. My 24-70 f/2.8 lens was fully extended to 70mm. My impression is that it looks just like this if you make sure the laptop screen is tilted towards you enough. About 10 (?) degrees closer towards your face than dead-on perpendicular is closest for me. If tilted back too much, the laptop screen shows it as pure black and in reality it does NOT look like this. And my flashlighting is back (upper right). I cropped it a little less tightly this time so you can see the background.
I think this level of variation seems acceptable...I mean, it doesn't seem excessive.