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How to use a Split Focus Diopter

We create Hollywood effects with simple household products... and so can you.

How to use a Split Focus Diopter

Season 1 Episode 58 | 4m 26s

A split focus diopter is an unique way to achieve the illusion of deep focus. The half convex glass attaches in front of the camera's lens to make half the lens nearsighted.

Shanks FX

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