A ring flash is a circular photographic electronic flash that fits around a camera lens. Unlike point light sources, a ring flash provides even illumination with few shadows visible in the resulting photographs because the origin of the light is very close to the optical axis of the lens.
What is the use of ring light?
A ring light produces soft, direct light on a subject, minimizing shadows. When you take a photo using a ring light, place the camera lens in the center of the ring; this ensures that your subject is lit evenly from the direction of the camera.
Is a ring light worth it?
If you're taking any sort of photos or videos at home, a ring light might be a worthwhile investment. ... Ring lights gained popularity from the photography community, but they've quickly become a must-have for all types of content creators thanks to their versatility.