Security camera lines of resolution are one of the factors that determine the size, fineness, or quality of a high resolution CCD camera. Most often, this figure is referenced in TVL which stands for Television Lines and is usually used to reference analog type video quality. Digital resolution is usually referenced in terms of pixels. Let’s take a look at both and see how the lines of resolution relate to high resolution CCD camera picture quality.
PTZ or Pan Tilt Zoom Internet cameras have the freedom of mobility to move about a horizontal and vertical axis thereby increasing the field of view for the camera. In fact in some situations one Pan Tilt Zoom Internet camera may be able to perform the work of two or more stationary cameras. In addition, the zoom function allows combinations of lenses to create telephoto enlargements for better clarity of objects that may be too far away from a normal camera lens. These cameras also have the benefit of using the Internet too monitor and control the cameras.
There are so many type of dome cameras that it makes this category of digital video security camera incredibly versatile. There are basically three types of security camera: 1. The box camera, a very popular and original security camera; 2. Bullet cameras, so called because of their shape; and, 3. Dome cameras, also named after their shape.
A wide dynamic camera conjures images of an incredibly large (In a horizontal direction) camera, somewhat like an oversized wide-angle lens. However, that's not what a wide dynamic camera is at all. In fact, some ultra-small hidden covert cameras are also wide dynamic cameras. So just exactly what is the wide dynamic range of a camera? Read on to find out.
Most digital video security systems today are designed for use with an LCD video camera monitor. There are a few reasons for this, but there are also reasons why it may be difficult to use an LCD monitor. In the following article will discuss LCD monitors how they differ from CRT (Cathode Ray Tube) monitors and some of the advantages of using them instead of a CRT.