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How to pull focus on subjects displayed on the LED wall | Virtual Cinematography

How do you focus on something that is not there, but is seen “in” the LED wall, something like an animated digital character, that’s inside the LED virtual set?

Pulling focus to objects and subjects that are displayed on an LED wall.

Virtual Production Training / Director of Virtual Production Asa Bailey.

You want to pull focus from the cast on-set to the fully virtual character that’s being displayed on the LED wall. The problem, if you role your optical focal point forward from position A to position B with the on-set camera, as you roll to and then through the actual front of an LED wall, you’ll end up hitting the moiré zone. Moiré is a French word meaning “having a wavy or ripply surface pattern” and it is what we call the effect when the on-set camera focus, hits the LED wall and creates a mess of lines and artifacts in your shot. Not good. So how do you shoot around this and pull focus to subjects inside the LED virtual set?
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