What is Sensor size and aperture?
Bigger sensors and wider apertures (f/2.0 and below) gather more light.
Short answer
Marketing hides sensor size; reviews with low-light samples are the truth.
Sensor size and aperture when buying a webcam
Bigger sensors and wider apertures (f/2.0 and below) gather more light.
Why it matters: Light gathering decides how you look at 8pm under a tube light — the most common real-world test.
Look for: Marketing hides sensor size; reviews with low-light samples are the truth.
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