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A second-generation model, Ring Doorbell 2, was released in 2017, with updated hardware and a 1080p camera with improved low-light performance, that does not rely solely on Wi-Fi, unlike the original model. [44] The Ring Doorbell Pro interoperates with Amazon Alexa to play prerecorded greetings to visitors and allow visitors to leave a message ...
A ring flash is a circular light that is often operated with a camera lens in the center to take photographs. Unlike point light sources , a ring flash can illuminate a subject with minimal shadows by closely and evenly surrounding the optical axis of the camera lens.
The artifacts are especially common with compact or ultra-compact cameras, where the short distance between the lens and the built-in flash decreases the angle of light reflection toward the lens, directly illuminating the aspect of the particles facing the lens and increasing the camera's ability to capture the light reflected from normally ...
A "top camera" which will be used to take the photograph. Typically this is a digital SLR or digital compact camera with a macro lens or macro function. A "contraption" to link the two cameras and block out any excess light. The contraption may be a simple cardboard tube, or an open ended box that fits around the bottom camera.
A light leak is a hole or gap in the body of a camera, or other optical instrument, where light is able to "leak" into the normally light-tight chamber, exposing the film or sensor with extra light. This light is diffused, although parts within the camera may cast shadows or reflect it in a particular way. For most purposes this is considered a ...
The Flip Video Ultra camera. A pocket video camera is a tapeless camcorder that is small enough to be carried in one's pocket.. A typical pocket video camera has an LCD screen of at least 1.5", the ability to capture either only standard video or both standard video and high-definition video (H.264/MPEG-4 AVC), at least 128MB of internal memory and a Secure Digital (SD) card extension or at ...
Lytro Illum 2nd generation light field camera Front and back of a Lytro, the first consumer light field camera, showing the front lens and LCD touchscreen. A light field camera, also known as a plenoptic camera, is a camera that captures information about the light field emanating from a scene; that is, the intensity of light in a scene, and also the precise direction that the light rays are ...
Vidicon tube 2 ⁄ 3 inch (17 mm) in diameter A display of numerous video camera tubes from the 1930s and 1940s, photographed in 1954, with iconoscope inventor Vladimir K. Zworykin. Video camera tubes are devices based on the cathode-ray tube that were used in television cameras to capture television images, prior to the introduction of charge ...