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Panasonic DVX-200 – 4k 60fps. Point Grey FL3-U3-88S2C-C 8.8 MP Color USB 3.0 – released in 2012 and records at DCI 4K (the framerate is limited to 21 fps) [ 7] RED EPIC – released in 2011 and records at 5K RAW (5120×2700 13.8 megapixels) & DCI 4K (4096×2160, 8.8 megapixels) RED Scarlet-X – released in November 2011.
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 250. /.
Ultrawide formats refers to photos, videos, [ 1] and displays [ 2] with aspect ratios greater than 2. There were multiple moves in history towards wider formats, including one by Disney, [ 3] with some of them being more successful than others. Cameras usually capture ultra-wide photos and videos using an anamorphic format lens, which shrinks ...
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 ...
The prototype, created in 1936 and known as "Anti-Glare", had plastic frames and green lenses that could cut out the glare without obscuring vision. The name "Ray-Ban" was hence derived from the ability of these glasses to limit the ingress of either ultra-violet or infra-red rays of light. [7] Impact-resistant lenses were added in 1938. [8]
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 aberration and also reduce ...