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Fundus photography involves photographing the rear of an eye, also known as the fundus. Specialized fundus cameras consisting of an intricate microscope attached to a flash enabled camera are used in fundus photography. The main structures that can be visualized on a fundus photo are the central and peripheral retina, optic disc and macula.
Fundus photographs of the right eye (left image) and left eye (right image), as seen from the front (as if face to face with the viewer). Each fundus has no sign of disease or pathology. The gaze is into the camera, so in each picture the macula is in the center of the image, and the optic disc is located towards the nose. Both optic discs have ...
Stereoscopy creates the impression of three-dimensional depth from a pair of two-dimensional images. [5] Human vision, including the perception of depth, is a complex process, which only begins with the acquisition of visual information taken in through the eyes; much processing ensues within the brain, as it strives to make sense of the raw information.
Aperture. In biology, the pupil (appearing as a black hole) of the eye is its aperture and the iris is its diaphragm. In humans, the pupil can constrict to as small as 2 mm (f/ 8.3) and dilate to larger than 8 mm (f/ 2.1) in some individuals. In optics, the aperture of an optical system (including a system consisted of a single lens) is a hole ...
Photography is the art, application, and practice of creating images by recording light, either electronically by means of an image sensor, or chemically by means of a light-sensitive material such as photographic film. It is employed in many fields of science, manufacturing (e.g., photolithography), and business, as well as its more direct ...
Bliss (photograph) Bliss, originally titled Bucolic Green Hills, is the default wallpaper of Microsoft 's Windows XP operating system. It is a photograph of a green rolling hills and daytime sky with cirrus clouds. Charles O'Rear, a former National Geographic photographer, took the photo in January 1998 near the Napa – Sonoma county line ...
Full-spectrum photography is being used for art photography and can yield colors similar to visible color film, but with a brightness and tonality of infrared photographs. Most full-spectrum art is of landscapes. A movement is also building for artistic human photography with full-spectrum photography, that captures a real person interacting ...
1. Sign in to Desktop Gold. 2. Click the Settings button. 3. Click Personalization. 4. Click the Backgrounds tab. 5. Under the "Choose Library," select either On my PC or From pixabay. 6. Click an image to set it as your background.