If you have never been to an outdoor concert or event in 4k video you probably can not understand how this can possibly be useful. I’d like to show you my 4k cameras. My 4k cameras are a Samsung EVO 7500U, a Sony Alpha DSLR with 32GB of internal memory, a Canon 50D, a Nikon D300 and a Fuji X-T1. I also have a new 4k camera for Nikon that I’ve been experimenting with and that will probably not be a part of this guide, although I will update this page when I have a better idea of it.
These four cameras will be able to process 4k video at a standard 24 frames per second (fps) resolution, using the same sensor technology used in HD video, in a relatively low power mode in order to conserve battery life. To my knowledge 4k video will be the first time this has been accomplished for the human eye, which is a major step forward. In a couple of years we are going to have cameras that can capture full-sized HD video in 4k resolution. If that ever happens we won’t need 4k video cameras anymore. It’s already done!
What is 4k video and how does it work?
In order to understand 4k video we need to understand what the camera does. It has to do so because it allows us to create a super high quality video file that will be converted into 4k file-ready format. However, for now we’re only interested in 4k video formats, however, 4k videos can also be converted to the full resolution of 24 frames per second (fps) at a reasonable cost.
In order to produce the best possible video for the human eye in 4k it is important that everything on the screen be at the same resolution. To do this, the image sensor has to be able to produce images at the same quality as those found in a real 24 fps capture. Also note that we are dealing with images, not frames. So if the video has moving images such as music, action figures or even some action scenes, you may notice that the resolution of the image is lower than that found in 4k video as the frame of the image is not as sharp as it is in 4k video which could lead to aliasing. We are always concerned with that anyway, but that could happen with even perfectly sharp videos and that is why we go into the pixel level with our 4k video production.