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0.8 H. This table can be used in a number of ways : Find the optimal distance for a given screen. Example: for a 4K UHD screen 140 cm high (112 inches diagonal), the optimal distance is 140 × 1.6 = 224 cm. Find the right screen size. Example: for a 1080 HDTV used at a distance of 250 cm, you need to find a screen whose height is close to ...
30 frames per second. Samsung Galaxy Note 3 (2013) [a] (Snapdragon model) – The first mobile phone with 2160p at 30fps. Samsung Galaxy A8 Star (2018) – First Galaxy A-series device with 4K recording. Apple iPhone 6S / iPhone 6S Plus (2015) – The first iPhones to record in 4K.
B4-mount. The B4 lens mount was standardized in 1992 by the Broadcasting Technology Association (BTA) and is defined in BTA S-1005. [1] This standard defines the physical mount, but also optical properties and some electrical connections. The B4 mount defines the sensor to have a diagonal size of 11 mm (a so-called 2/3" size sensor).
Ultra-high-definition television (also known as Ultra HD television, Ultra HD, UHDTV, UHD and Super Hi-Vision) today includes 4K UHD and 8K UHD, which are two digital video formats with an aspect ratio of 16:9. These were first proposed by NHK Science & Technology Research Laboratories and later defined and approved by the International ...
An aspheric biconvex lens. An aspheric lens or asphere (often labeled ASPH on eye pieces) is a lens whose surface profiles are not portions of a sphere or cylinder. In photography, a lens assembly that includes an aspheric element is often called an aspherical lens. The asphere's more complex surface profile can reduce or eliminate spherical ...
HX series. Sony Cyber-shot DSC-HX5V (2010) Sony Cyber-shot DSC-HX400V (2014) with 50X zoom and GPS. Sony Cyber-shot HyperXoom 50. Sony Cyber-shot DSC-HX300. Note: HX is an abbreviation for HyperXoom. All cameras used CMOS sensors, could zoom optically while filming, and had optical image stabilization.
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