I'm doing the cliched run down dark hall toward camera with bright spot light behind. There will be a few flashlight LEDs on the walls, and 3 cheap rotating police lights that are no very bright.
Being a new amateur filmmaker, I'm unsure how to keep it all in focus shooting alone. I know my f1.4 lens will be too small DOF, and cranking it up to f10 will be too dark, so I thought I'd reach out for other ideas? Adding light isn't my option since I don't have any and I want dark shadows as well. I've got a toy fog machine I have never fired up yet, and that might enhance the effect, but I worry about triggering smoke alarms.
But I think FOCUS will be my real problem - maybe focus for the end of the run? The shot will end up maybe 2-3 seconds max (and that might be too long) and, although transitions scenes, is really designed for me to screw around with my camera and learn something.
Any trick I am not thinking of to get larger stretch of focus in a dark hall?