Optics, shooting in the dark and viewing features



Because lenses have their own resolution limitations, in order to take full advantage of 4K cameras, you should equip them with at least 8 megapixel optics Pasang CCTV Jakarta. This is not a cheap pleasure, as there are only a few brands of this kind of lenses on the market. In addition to the price, these lenses have very significant dimensions, which, in turn, affects the size and appearance of the cameras. Thus, 4K cameras should be physically larger than those of lower resolutions, and such form factors as, say, a compact dome camera are currently unrealizable in this standard. Namely, this form factor is the most demanded in the video surveillance industry.

Another popular surveillance tool in modern systems is cameras adapted for shooting in low light conditions. In this sense, it is better to forget about the 4K format: the minimization of sensors has led to such an increase in the pixel density in the matrices, in which the amount of light falling on a separate image element is significantly reduced here. That is why not all leading manufacturers of video surveillance equipment are in a hurry to switch to the new resolution standard. Indeed, upon a detailed study of the customer's needs in almost every specific project, it turns out that the task of providing an adequate image during night shooting is more important than obtaining a highly detailed general view of the object.

Let's say that all issues related to cameras, sensors and signal transmission / recording devices have been resolved. What about viewing images? Obviously, at least a 4K monitor is required to view scenes with the maximum amount of detail. And, despite the fact that such monitors appear in abundance on the consumer market, they are generally of little use for video surveillance systems, since they are not designed for round-the-clock operation, are more susceptible to matrix burnout, etc.

In addition, when viewing multiple images on the same 4K screen, the output efficiency of 4K camera channels and conventional HD is about the same, which again calls into question the effectiveness of investments in ultra-high definition.