Starburst Ghosts on LeavesShreeya SharmaAward: Top 100
School: american high school This photo shows a green, leafy bush with a scattering of light across the picture. This lighting effect is known as lens flare. It is caused by light scattering, or flaring, inside a camera lens due to the wave nature of light. The sunlight in this photo enters from right outside the top left corner of the frame and acts as an electromagnetic wave that deviates from its normal path inside the lens to reach the digital sensor, which creates a lens flare in the picture. There are different types of lens flare that can occur; the two that are primarily visible in this photograph are starburst flare and ghosting flare. Light entering the camera lens is ideally supposed to refract or bend as it passes through the lens. Ghosting generally happens when the light reflects across certain lens elements (parts of a lens) multiple times, creating shapes like the two circles on the upper left side of the image. Starburst flare is a type of lens flare that looks like rays of light around the sun, as seen in the photo. This effect occurs when light passes through the lens' aperture blades and causes the light to undergo diffraction, which is the bending of light as it passes through a small opening or around an obstacle. While lens flare can be added to photos using post-processing software, this picture has lens flare from sunlight hitting the camera lens with no editing. 
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