How it works
Move the camera while oppositely changing focal length to hold subject size.
Terminology boundary: Aliases vary by region and production context; the physical parameter above is the deciding clue.
08 · Lens and focus
Dolly zoom推拉变焦／眩晕镜头
Move the camera while oppositely changing focal length to hold subject size.
Physical change: position + focal lengthVertigo effectzolly
Narrative effect
Subject stays stable while background perspective stretches.
When to use it
Shock, realization, dread, altered perception.
Common mistakes
Use depth layers and precise compensation; avoid morphing.
SHOT PROMPT TEMPLATE
Turn the term into direction
Dolly backward while zooming in for 3 seconds; lock subject size.