Focused reference · Unreal Engine 5.8

Cine Camera Actor and lens

unreal-camera-cinematics/references/cine-camera-and-lens.md

Cine Camera Actor adds filmback, lens, aperture, focus, and look-at tools suited to cinematics.

Physical controls

  • Filmback/sensor affects field of view for a given focal length and establishes aspect framing.
  • Current Focal Length: longer narrows FOV/compresses framing; shorter widens FOV and exaggerates spatial perspective when camera position changes to preserve subject size.
  • Aperture (f-stop): lower f-number increases aperture and shallow depth-of-field potential; higher f-number deepens focus. Exposure interaction depends on project/camera settings.
  • Focus Method / Manual Focus Distance / Tracking: defines focal plane behavior.
  • Post Process Blend Weight: blends the camera's post-process overrides.

Setup

  1. Choose delivery aspect/resolution and filmback before composing.
  2. Place the camera for perspective; then choose focal length for framing.
  3. Set focus method and visualize focus plane/debug focus.
  4. Tune aperture/DOF only after subject blocking and focus distance are stable.
  5. Lock exposure behavior with the lighting/cinematic plan; avoid compensating lens mistakes with arbitrary post process.
  6. Test camera motion for focus pumping, clipping, motion blur, and temporal artifacts.

Depth of field can obscure gameplay-critical information and increases rendering cost. For in-game cinematics, preserve subtitles, skip prompts, UI safe area, and accessibility requirements.