A stereo camera is a specialized photographic device designed to capture three-dimensional images by taking two pictures simultaneously, either side by side or through different optical channels. When the resulting images are viewed using a stereo viewer, the brain combines the two perspectives, creating the illusion of depth and a 3D effect.
Some stereo cameras achieve the 3D effect by using different coloured filters for each image, which are later printed in an offset manner. These images can then be viewed through coloured glasses, such as red and blue (anaglyph), to perceive depth. Stereo cameras have applications in scientific imaging, entertainment, and hobbyist photography, allowing photographers to explore perspective, spatial relationships, and immersive visual experiences that go beyond conventional two-dimensional photography.