If you are fine with HD resolution, you can pick any of those cameras. I just wanted to point out the difference between real and fake 4K. Quite the opposite, many of them offer great results in HD and are reliable cameras.
#Valerian real or fake 4k 1080p#
60 fps. Therefore also check out the camera’s 1080p HD resolution.ĭon’t get me wrong, “fake 4K cameras” are not bad cameras. Action cameras offering fake, interpolated 4, mostly just offer 1080p with max. That’s not a reliable method, but most action cameras which offer native 4K at 30fps, also offer 1080p with 120 fps. Processors that can’t do 4K at a decent frame rate: The highest resolution possible is 2880 x 2160 with 24fps. Sunplus 6350 (10fps) and Allwinner V3 (15fps) are also not capable of 4K resolution with a decent frame rate. The famous Novatek 96660 chip used in many action cameras ( SJ5000x elite, Firefly 6s or Elephone Explorer) is not capable of real 4K resolution. Not only the sensor, also the processor has to be capable of 4K video resolution. Sony IMX206 – 16 MP (found in Xiaomi Yi, Git2, SJCAM M20, Yi Lite,…).Sony IMX078 – 12MP (found in EKEN H8, Elephone Elite,…).
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. There are a lot of action cameras branded “4K camera”.
0 kommentar(er)
