underwater photography
Quick Summary
Underwater photography involves capturing images beneath the surface of the water. This specialized field requires either watertight cameras or protective housings for standard cameras, with controls operated through pressure-tight glands.1
Key challenges include the absorption of red and yellow light by water, necessitating artificial light sources like battery-powered lamps or electronic flash units to achieve full color in photographs. Additionally, the refractive index of water affects lens performance, altering the apparent distance and angle of view of subjects. Photographers must account for this, either through calibrated focusing or by using compensating lenses. Some cameras are designed for direct water contact, eliminating distortion and widening the angle of view underwater.1
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