Hard vs. soft light: the shadow tells you
Look at the edge of the shadow to know if the light is hard. What decides hardness is the source's size relative to the subject, not its brightness: hard light (a small source like the noon sun or a bare bulb) gives sharp shadows and stark contrast → tough, dramatic, dangerous; soft light (a large, diffuse source like an overcast sky or a softbox) gives gentle shadows with smooth transitions → tender, dreamy, approachable. (Hardness also depends on distance: the closer the same lamp is to the subject, the relatively larger it is and the softer the light; the farther away, the harder.)
Where the light comes from changes the emotion
Front light (light from the camera's side): flat, clear, full of info, but lacks dimension; side light: best for shaping — half lit, half dark, strong drama; backlight (light behind the subject): outlines the edge, makes haze and dust glow, maximum atmosphere — but the face goes dark (add fill, or just make a silhouette).
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Light from the noon sun or a bare bulb, giving sharp shadows and stark contrast — this is?
答案:Hard light
A source that's small relative to the subject = hard light, with sharp shadow edges (hardness is about source size, not brightness).
To shoot an atmospheric image where the subject's edge glows and dust / haze in the air is lit up, where should the light go?
答案:Behind the subject (backlight)
Backlight outlines the edge and makes dust/haze glow — maximum atmosphere (at the cost of a dark face, needing fill or a silhouette).
True or false: the soft, smoothly-transitioning light of an overcast sky is hard light.
答案:False
An overcast sky is a large, diffuse source = soft light, with gentle shadows; hard light has sharp, stark shadows.