Definition
What is a focus pull in video production?
A focus pull is the act of changing lens focus to keep a moving subject sharp or to transfer attention between distances. On larger productions, the first assistant camera uses marks and a follow-focus system to make the adjustment.
The craft is especially visible in shallow-focus work, where a small error can make an actor’s eyes soft. The focus puller anticipates blocking, camera movement, and lens behavior rather than reacting after focus has already been lost.
A focus pull may be invisible when it simply maintains sharpness, or expressive when it creates a rack focus. Both uses require shared marks, rehearsal, and coordination between camera, performers, and the assistant camera team.
Example in the edit
As an actor walks from a doorway toward camera, the focus puller continuously adjusts focus to keep their eyes sharp.
Why editors use it
Reliable focus protects usable takes and enables deliberate changes in attention that editing alone cannot reproduce.
Quick answers
Frequently asked questions about Focus pull
Who pulls focus on a film set?
The first assistant camera, commonly called the focus puller or 1st AC, usually handles it on a crewed production.
Why use a follow-focus system?
It provides repeatable marks and a more controlled way to turn the lens than gripping its focus ring directly.
Can focus be fixed after filming?
Some software can improve minor softness, but it cannot reliably recreate detail that was never recorded sharply.