The more the pixels, the clearer the image that is a better resolution.
Let’s look at the pixels in 2k and 4k
So 4K resolution is 4 times the 2K resolution.
With 4k cameras renting for almost as much as 2k cameras this may be an easy decision.
However one should keep in mind the following :
The capability of the recording cards and the edit systems strength to handle 4k footage.
The end display – ie if the visual is to be seen a mobile than even 2k is more than enough.
Download strength of internet networks – 4k footage needs much faster internet speeds
So now its upto the filmmakers, shortfilmmakers, documentaryfilmmakers, amatuer filmmakers etc to select whether to go for a 4k or a 2k