hard light soft light diffused light bounce light bounce negative fill available light color temperature
Ambient Light refers to existing surrounding light at a location—natural or artificial—before additional film lighting is applied.
Definition
Ambient Light (German: Umgebungslicht) refers to all the light present at a location before the cinematographer or gaffer introduces additional film lighting. It can originate from natural sources (sun, sky) or artificial sources (room lighting, streetlights).
Ambient Light vs. Available Light
The terms are often used interchangeably, but there are nuances:
| Term | Meaning |
|---|---|
| Ambient Light | All existing light (technical) |
| Available Light | A conscious decision to use only existing light |
Sources of Ambient Light
Natural
- Sunlight (direct or diffused)
- Skylight
- Moonlight
- Bioluminescence (rare)
Artificial
- Ceiling lights
- Practical lamps (floor lamps, etc.)
- Screens
- Street lighting
- Billboards
Working with Ambient Light
Analysis
- Direction: Where is the main light coming from?
- Quality: Hard or soft?
- Color Temperature: Daylight? Tungsten? Mixed?
- Intensity: Sufficient? Too bright?
Control Methods
- Kill: Overpower with film light
- Supplement: Fill, add accents
- Shape: With flags, nets, diffusion
- Filter: Gels on windows, ND
Ambient Light in the Workflow
During Location Scouting
- Check ambient light at different times of day
- Note window and lamp positions
- Measure color temperature
On Shoot Day
- Measure base level (T-stop, ISO, ND)
- Decide: Work with or against the ambient
- Control if necessary
Practical Tips
Using Ambient Light
- Windows as key light
- Practicals as motivation
- Maintain natural light fall-off
Controlling Ambient Light
- Black curtains (duvetyn) for killing light
- ND film on windows
- Dimmers for room lighting
See also
- Available Light – Using only existing light
- Practical Light – Visible light sources
- Natural Light – Light from natural sources
- Mixed Lighting – Light from multiple sources with different color temperatures
More in the lexikon
Related terms
Lighting
Hard light
Direct, point-source light with sharp-edged shadows — unfocused spotlight, direct sun…
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Soft Light
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Diffused Light
Lighting · Equipment
Bounce Light
Lighting · Equipment
Bounce
Indirect lighting technique using white reflective surfaces (foam board, bounce panels)…
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Negative Fill
Lighting · Terms
Available Light / Practical Light
Available Light refers to the use of existing light sources—natural daylight…
Lighting · Technique
Color Temperature