The cameras used in CCTV systems or systems closed circuit television circuit, are available in a variety of styles and options. The right camera for your surveillance system depends on your individual needs, as each option differs in its advantages and disadvantages in terms of positioning, monitoring and control. What works to deter criminal activity of a small business owner cannot function as a simple monitoring method for a homeowner.
Fixed or mobile mounting approach
Depending on the size and location of the area in need of supervision, have the option of having a fixed mount or pan- tilt- zoom or PTZ (mobile cameras with zoom). A fixed mount camera works well for systems that do not require direct control by an operator and function to “install and forget “about the surveillance. A PTZ camera allows the operator to manipulate the camera to further examine a different section of the area for the control of the camera moving through the scene, changing the tilt angle or approach about a suspicious person or object.
A color or black and white
Lighting conditions determine what color scheme works best camera for your surveillance needs. The black and white cameras offer sharper images in low light areas, while color cameras work best in bright and well lit. Monitoring color also allows for easy detection of suspicious objects and people, especially if the system depends on regular monitoring by an operator. The day / night cameras allow the best of both worlds because they provide color images during the day, but change the recording in black and white at night.
Indoor and outdoor
Since the basic purpose is to act as tools of surveillance cameras are available in a variety of indoor and outdoor air. Interior options include a faint, and often more aesthetic design discreetly mixed with decoration. The outdoor cameras require more protection from the elements. The humidity, lightning and rain pose a risk of equipment damage if not protected or sealed.
Cameras CCTV are available in three basic designs: dome cameras, hidden cameras wall. Dome cameras are called so because they hide behind a dark Plexiglas dome, PTZ cameras often use that move and rotate to monitor a large area. Cameras mounted on walls permanently vary slightly in shape and options but generally consist of a rectangular box with a lens attached to the front. Designed for covert surveillance, cameras avoid detection being small and discreet.
Types of Lenses
The interchangeable lenses allow greater focus additional display area controlled by the camera. Some lenses only allow a single focal length, which means that monitor an entire area without the ability to focus on any specific point. The varifocal lens allows manual focus adjustment, while an operator controls a motorized lens approach.