CCTV cameras are available in a variety of shapes and sizes. There are several factors that determine the good camera at a particular location, and for specific applications. One size does not fit all the security cameras, and sound design in terms of light power, position and points of view or opinions provided. Put a color camera standard in low light and a video is ugly and noisey grainey "the camera battle.
Security cameras show both standard color cameras, day / night cameras or infrared cameras .. There are also fixed, which means to see a specific place, or Pan-Tilt-Zoom cameras that allow the operator to move the camera in an area of 360 ° and an optical zoom on specific locations. Environment The standard retail will cameras inside and out, fixed and PTZ with internal and external doors and exits are Entrys.
Its A resolution analog cameras to measure the number of TV lines "refers to the horizontal lines of the camera screen. The more the better. Typical camera 5 years ago when the typical measured 380-420 TVL resolution. Today, 540 TVL resolution is a standard analog CCTV cameras. Megapixel IP cameras are to break this barrier, with horizontal lines in operation "megapixels.
A 3.1 megapixel camera has more than 2000 lines! The price is the determining factor (a surprise) and IP megapixel today, Mega Bucks! So if you have a big budget, spring for a couple of megapixel cameras, all cameras and concentrate on other analog devices, high-resolution 540TVL CCTV. Day / Night One of the main factors of cameras, lights at night. The light's position? He is black? In low light, a / Day Night Camera is your choice.
The color in good lighting and switches to B / W for low light conditions. The technical specifications of the most important is to facilitate the LUX rating. The more the better! Standard Interior Color Dome Camera 0.1 LUX and one day and one night will be, 001 or better. Go read or seek additional information. IR infrared cameras (IR cameras) are a rage in the introductions camera. Only 2-megapixel IP cameras.
Being able to see the day and night, infrared cameras have IR LEDs that are beyond what the human eye can see, but the camera captures the infrared light is flashing the flashlight so that you see constantly in the total darkness. Got a PTZ cameras have one! A fixed camera is blind as a guard watch. Has never eyelids, never stop looking. Robot PTZ camera is the same as guardian, but can not move and has a telescope for close-up.
There is a difference of a camera for $ 50 and a good $ 250 camera, in many cases. IP megapixel cameras at $ 800 or more, hopefully soon a distant memory to increase volumes. If a seller or purchase business, choosing the right camera for your application.
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