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take the Canon 5D DSLR: with their first HD recording version, the Mk II, they binned (downscaled) the sensor output. Cameras with larger sensors will benefit from a higher photo resolution. If you crop top & bottom of a 12 MP sensor to get to a 16:9 format, you will end up with the 8MP for 4K resolution. Why are there 12MP sensors? It’s more than needed fro 4K? As explained above also the photo is resized from the 4MP sensor! Therefore check the sensor type. The EKEN H9 is sometimes advertised as 12MP camera, but just the max. Same applies to the Aptina ON AR0330 sensor.īe aware, often cameras are advertised as 12 MP cameras, but the Megapixel just refer to the max. take the EKEN H9 which has a 4MP sensor (Omnivision 4689), but is branded 4K. Which means if the sensor is smaller than 8MP, you can’t get a 4K video out of it. Nevertheless if you multiply the pixels you’ll get a result of about 8,8 MP (4K) or 8,29 Megapixel (UHDTV). The 16:9 format (3840 x 2160 pixels) is called UHDTV (Ultra HD). When there should be motion but 2 frames show the exact image, the frame was doubled.ĤK resolutions is 4096 x 2160 pixels and is actually not 16:9. You can’t tell from specs when browsing them, only when looking through your footage frame by frame. The output file now shows 30fps, but it looks like 15 fps. 15 frames per second are recorded and each frame is doubled. Here’s an example of a 10fps 4K video, recorded with an EKEN H9 and an early firmware:Īs mentioned at the beginning there is another trick: Doubling frames. If it is less than 24fps it will be less fluent, more likely a stop motion video. Watch out which frame rate the camera can do in 4K. So how can you check if it is a real, native 4K camera? Frame Rate If the sensor / processor is not capable of doing 4K at a reasonable frame rate, the frames are doubled to state a better figure on paper. In other words the sensor’s output is a lower resolution than 4K and then the image is upscaled by interpolation. This process works by guessing or “interpolating” values based on a weighted average of known pixels in the vicinity. Upscaling uses known pixel values to estimate unknown intermediate pixels. Therefore the original source at a lower resolution is upscaled to achieve a 4K output file. Real 4K or native 4K is simply explained: the original source (sensor output) is 4K resolution.Īs mentioned at the beginning, “4K cameras” sell better. Find out about the difference about real vs fake 4k: Although their output video size is 4K, it might not be real 4K. Simple reason, they sell better wearing this logo. If you are browsing the catalog and you find some movies that you might be interested in, save them in your watchlist so you don't lose sight of them.There are a lot of action cameras branded “4K camera”.
VALERIAN REAL OR FAKE 4K MOVIE
In addition, maybe when you're in a store, with the "Scan a movie" function, you can scan the barcode on the back of the 4K DVD / Blu-Ray box set, to find out more quickly in which resolution that particular movie was recorded. The submitted film will be added within 3-5 working days. If you are browsing through the catalog and find one of your favorite movies, save it in your favorites to make the "discover" feature more accurate.įurthermore, if a particular 4K movie is not present in the catalog, it is possible to request its insertion through the appropriate "+" button, located at the bottom right and always visible. If you don't know which movie to watch in the evening, use the "discover" feature to let you find new movies to watch, based on the movies you saved in your favorites. In fact, in addition to the resolution, each film has a lot of other useful information like plot, director, YouTube trailer, release date, HDR etc. Moreover you can simply browse the library composed of more than 550 movies all in 4K (native and not) to choose which movie to watch in the evening. With Real or Fake 4K you can immediately search for your favorite movies and see in which native resolution they were produced.
VALERIAN REAL OR FAKE 4K FULL
Not all the movies are recorded in native 4K, many of them are in fact simply reworked in post production from a Full HD resolution to a UHD (4K) resolution, which therefore cannot guarantee maximum quality. Have you got a 4K TV? Do you want to make the most of it? Did you buy your latest favorite movie in 4K but you realized its quality was not what you expected?