Diffusion in front of a light guarantees soft light.

• A. True
• B. False
• C. Not necessarily
• D. It depends

Answer: (B)

Soft light comes from the light source appearing large to the subject. Diffusion in front of a light often helps by spreading the beam and making the source look bigger, which can soften shadows. But it does not guarantee soft light in every situation. If the light is very close to the subject, or the diffusion is too thin, or the original source is small or narrow, you can still see hard shadows. Softness also depends on how large the apparent source becomes relative to the subject and how evenly the light reaches the scene. For truly reliable softness, you usually need a genuinely large apparent source (like a softbox or umbrella, or greater distance with diffusion) plus proper placement and fill. So diffusion alone does not guarantee soft light.