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Schematic of an omnidirectional camera with two mirrors: 1. Camera 2. Upper Mirror 3. Lower Mirror 4. "Black Spot" 5. Field of View (light blue) In photography, an omnidirectional camera (from "omni", meaning all), also known as 360-degree camera, is a camera having a field of view that covers approximately the entire sphere or at least a full circle in the horizontal plane.
The Schmidt camera was invented by Estonian-German optician Bernhard Schmidt in 1930. [1] Its optical components are an easy-to-make spherical primary mirror, and an aspherical correcting lens, known as a Schmidt corrector plate, located at the center of curvature of the primary mirror. The film or other detector is placed inside the camera, at ...
A twin-lens reflex camera (TLR) is a type of camera with two objective lenses of the same focal length. One of the lenses is the photographic objective or "taking lens" (the lens that takes the picture), while the other is used for the viewfinder system, [ 1 ] which is usually viewed from above at waist level.
The mirrorless interchangeable-lens camera achieves the same result by providing the photographer with a digitally captured image. The twin-lens reflex camera provides both a viewfinder image by reflecting the image onto ground glass and an image through another lens to the film. The image exposing the film is not reflected.
With mirror lock-up the mirror (2) flips up towards (5) well before the shutter (3) opens. As a result, light no longer reaches the eyepiece (8). Mirror lock-up (often abbreviated to MLU) is a feature employed in many Single Lens Reflex (SLR) cameras. It allows the operator to reduce vibration-induced motion blur during exposure. It also allows ...
"Moderate coffee drinking has been related to health benefits," lead study author Lu Qi, M.D., PhD, interim chair of the Department of Epidemiology at Tulane University, told Fox News Digital.
The family of Tennessee death row inmate Gary Wayne Sutton held a press conference asking Gov. Bill Lee to examine the case for a potential pardon.
One-way glass (4) used in a teleprompter. A one-way mirror is typically used as an apparently normal mirror in a brightly lit room, with a much darker room on the other side. People on the brightly lit side see their own reflection—it looks like a normal mirror. People on the dark side see through it—it looks like a transparent window. The ...