Making the right choice of camera: analog, IP, or HD-SDI?
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Making the right choice of camera: analog, IP, or HD-SDI?

Making the right choice of camera: analog, IP, or HD-SDI?

Making the right choice of camera: analog, IP, or HD-SDI?

There are different types of cameras to choose from: IP, analog, and HD-SDI. Before making the choice you should decide what video quality would suit your needs. Click here to see how different types of cameras compare against one another.

Analog cameras are an older and cheaper but still widely used technology. Their resolution is measured in TV lines (TVL); today the most popular resolutions are 700 and 1000 TVL. These cameras are connected to a digital video recording device (DVR). The image from the camera to the recording device is transmitted over a coaxial cable or using a UTP (LAN cable) and special converters.


IP cameras is a new and rapidly gaining in popularity technology. They produce much more detailed visuals than analog cameras and are mostly used when there is a need for detail and quality. The resolution of IP cameras is measured in megapixels (for example, 1MP, 1.3MP, 2MP, 3MP, 4MP, and so on). They are connected to a network video recorder (NVR). The image is transmitted to the recording device over a UTP (LAN) cable. A big advantage of IP surveillance systems is the PoE function, which allows transmitting video through the same LAN cable which is used for power. This significantly simplifies the installation process. Note that both the camera and the NVR device must support the PoE function.

HD-SDI cameras are usually installed as a replacement for old surveillance systems, making use of already laid down coaxial cables. As with IP cameras, they ensure a high quality; just like with analog cameras, the video is transmitted over a coaxial cable. HD-SDI cameras are often used as a cheaper alternative to IP cameras. The technology supports 1080p video transmission without sacrificing quality for distances as far as 500 metres.

WiFi cameras are IP cameras which have the WiFi function. The main advantage of WiFi cameras is no cables for the signal transmission. The only thing needed is connecting the camera to a power source. Wi-Fi cameras are a great choice when, for instance, the premises do not allow for installing cables for video transmission. These cameras can be connected to video recording device or an internet router, which enables accessing them from any place in the world via a phone or a computer.

It is worth noting that all of the aforementioned video camera types can be used for surveillance over the Internet. The difference is that analog and HD-SDI cameras require a video recording device, which is then connected to a router. IP and WiFi cameras can be connected to a router directly. As a result, IP cameras make the following arrangement possible: there are two IP cameras at home, one in the cottage and one in the office; the video material from all three can be recorded to a video recording device and watched directly from home. For the setup to work well, the cottage and the office should have a good Internet connection.

If you have any questions about which type of cameras would suit you the best, do not hesitate to contact us





About is specialized cctv equipment online store. In our product range you will find wide range of security cameras and cctv accessories as well as spy cameras, action cameras, wildlife cameras, alarm systems and similar products. Installing cctv camera system in some cases might be very easy, therefore we offer wide range of complete DIY security camera systems prepared to install without professional installers' help. It is very important to choose the right cctv camera to get the best performance under specific conditions, therefore if you have any questions regarding any cctv camera system or any particular surveillance camera, please contact our professional support team. In order to make it easier for you to choose the right surveillance camera, we have prepared a FAQ section, where you will find answers to the most common questions as well as explainer videos and illustrations about CCTV. If you have already ordered security cameras but have some questions about configuration or installation - we are here to help. We will provide you with detailed instructions on how to to prepare your security camera system or camera for work. If you cannot find your desired security camera system or other CCTV system item in our online store please contact our customer support and we will check if this product is available in our warehouse. All our products are genuine and come with manufacturer’s warranty for good price.

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