Fill Light
A secondary light source that 'fills' in the shadows created by the key light, reducing shadow intensity and controlling the overall lighting contrast.
What is Fill Light?
The fill light in product photography is typically positioned on the opposite side from the key light and is lower in intensity. For bright, clean product photography (typical for marketplaces), the fill is often close to the key light intensity. For dramatic product photography (luxury, moody), the fill may be very weak or absent, allowing strong shadows to define the product's form.
E-Commerce Relevance
Fill light control determines whether product images look bright and accessible or dramatic and premium — matching the brand's positioning.
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