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Understanding Resolution

There are many aspects to Resolution but for our needs we’ll keep it simple. Resolution is simply a way to measure the size of the video being produced. Smaller images produce low resolution video; larger images produce HD or high definition video. It really is that simple; the larger the image being recorded, the higher the resolution and quality.

Resolution is measured in two different ways; TV lines (analog technologies) and pixels (digital technologies). Analog cameras (CCTV) are rated by horizontal TV lines. HD or digital cameras are rated in pixels as the image below indicates.

Resolution 4

CCTV (analog systems) have been around for decades. Recently new technologies (HD-CVI, Ultra-HD & Elite-IP) have solved the image quality problems of the old CCTV technology. Digital HD 720p, 1080p, 4 Megapixel & 4K systems are the future and now are as affordable as CCTV Analog systems.

What is the difference between 720p, 1080p, 4 Megapixel & 4k?
The simple answer is pixels, or the size of the video. Consider this; 1080p produces a larger image than 720p but if you view video of a 720p and a 1080p camera side by side on wide screen HD monitors, it’s likely you cannot tell the difference between the two. Why would this be the case? It is because both cameras meet the minimum resolution requirements of the monitors. The video looks identical; both providing crystal clear vivid HD video. The main reason you would choose to go with higher resolution cameras is because the larger image allows you to digitally zoom into the video without the image becoming blurry. This can be extremely helpful if you are trying to capture a license plate image or facial recognition at distance.

Car zoomed in

The good news is our systems allow you to mix camera resolutions on the same system. For example the HD-CVI Series offers 720p, 1080p and 4 megapixel resolution cameras. Our Elite-IP Series offers a large selection of 1080p and 3-4 Megapixel cameras. And our Ultra-HD Series offers 4 megapixel and 4K cameras. This provides the greatest flexibility when choosing the right camera for each location. All resolutions integrate seamlessly into the video recorder providing the most flexible HD performance on the market. The only requirement is the cameras must be the same technology as the video recorder. For example a CVI camera requires a CVI DVR. This holds true for all the technologies.

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