Photography Photography Lighting Principles and Techniques Questions and Answers 2 — Questions and Answers
Question 1: What is the primary purpose of a fill light in a three-point lighting setup?
- To create the main shadow pattern on the subject
- To reduce shadows created by the key light (Correct answer)
- To separate the subject from the background
- To illuminate the ceiling for bounce lighting
Correct answer: To reduce shadows created by the key light
A fill light is positioned opposite the key light to soften and reduce the shadows cast by the key light without eliminating them entirely.
Question 2: Which lighting modifier produces the softest light quality on a portrait subject?
- A bare flash head
- A grid spot
- A large octabox placed close to the subject (Correct answer)
- A snoot attachment
Correct answer: A large octabox placed close to the subject
A large octabox positioned close to the subject creates very soft, wraparound light because the apparent light source size relative to the subject is maximized.
Question 3: What does the inverse square law describe in photography lighting?
- Light color temperature doubles with distance
- Light intensity decreases proportionally to the square of the distance (Correct answer)
- Flash recycle time increases with power output
- Aperture size is inversely proportional to depth of field
Correct answer: Light intensity decreases proportionally to the square of the distance
The inverse square law states that light intensity falls off at a rate proportional to the square of the distance from the source, meaning doubling the distance reduces intensity to one quarter.
Question 4: In studio photography, what is the term for the small, bright reflection visible in a subject's eyes?
- Lens flare
- Catchlight (Correct answer)
- Specular bloom
- Eye bounce
Correct answer: Catchlight
A catchlight is the reflection of a light source in the subject's eyes, adding life and dimension to portrait photographs.
Question 5: What color temperature in Kelvin is typically associated with standard daylight-balanced studio strobes?
- 3200K
- 4200K
- 5500K (Correct answer)
- 7500K
Correct answer: 5500K
Most studio strobes are calibrated to approximately 5500K, which matches the color temperature of midday sunlight and provides a neutral white light.
Question 6: Which technique involves using a single light source positioned directly above and slightly in front of the subject to create butterfly-shaped shadows?
- Rembrandt lighting
- Split lighting
- Butterfly lighting (Correct answer)
- Loop lighting
Correct answer: Butterfly lighting
Butterfly lighting, also called paramount lighting, places the key light high and centered above the subject, creating a small butterfly-shaped shadow beneath the nose.
What is the primary purpose of a fill light in a three-point lighting setup?