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» home » 2025 High School Physics Photo Contest Gallery » Yagiz Ali Sah

Creating Lights

Yagiz Ali Sah

Award: Top 100

School: manisa bahcesehir college science and technology high school
Teacher: ekin su kaplan
Category: Contrived
Photo #19832

Creating Lights

I love taking photos,  especially of small objects with carefully chosen backgrounds and lighting. Finding the perfect lighting equipment isn't always easy,  so I use color gels to alter my light's color and enhance the aesthetic of my shots. This technique relies on a principle called selective absorption of light. In optics,  colored lighting results from selective absorption and spectral filtering. A white light source emits a broad spectrum of visible wavelengths,  but when optical filters (like color gels) are added,  they transmit only certain wavelengths and absorb the rest,  creating the pink light in this photo. This process depends on the filter's material and its transmittance spectrum,  which tells us how much light passes through at each wavelength. At the microscopic level,  it's all about the interaction between electromagnetic waves (visible light) and the molecular structure of the filter. Specific wavelengths get absorbed as photons trigger electronic transitions within the filter material,  while the rest pass through. Creating the colored light we see and adding a beautiful detail to our photos that we take.

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