Buying Guide of CCTV Cameras.

 There are lots of different  Buying Guide of CCTV cameras on the market each one making amazing claims so it's easy to see Best CCTV Services in Lahore why people get confused. Correct camera choice is the single most important thing when creating a good quality CCTV system. It is also the thing most people get wrong by fitting wide angle cameras then wondering why they can't make out any detail when something happens.

Retailers don't make things easy, they make claims in their advertising material which is simply not true. In this buying guide we're going to look at some of the key things to consider when choosing a CCTV camera and help you avoid those common mistakes.

We cover things like optical range, how far away from the camera can you identify someone or read a number plate? We also discuss Infra red, the ability of a camera to see in the dark. TVL or television lines is something many retailers use to distinguish between cameras, we explain why this isn't a very good metric with which to judge cameras by. Finally we talk about optical versus digital zoom and explain why varifocal cameras offer a much greater chance of capturing high detail. Choose a topic from the menu on the left or simply work your way through the list.

There is a lot of information here, of Best CCTV Services in Pakistan if you'd rather pick up the phone and have a chat with someone we are always happy to chat. We can have a look at your site using internet mapping whilst talking through what you were hoping to achieve. This will allow us to put together a package for you together with a plan showing where cameras should be fitted you want to buy a new HD CCTV system or upgrade your existing cameras and recorder to high definition but are worried about choosing the wrong kit? There is a lot of confusion surrounding high definition CCTV. What is HD? There are several formats such as HD-TVI, HD-CVI and HD-SDI, some of which have significant advantages over others so which one is best? Do you need special wiring, can you use CAT5e or CAT6 cable and if you are upgrading will you be able to use your existing cable? Is it better to have an IP based system with an NVR or a more traditional analogue system based around a DVR and what about systems from people like Arlo.

The best HD CCTV system possible. As always if you would rather talk to someone please don't hesitate to get in touch, we aren't just a website, we are a real business with living breathing experts who can point you in the direction. If you're buying a complete system we will put together a package for you. The main advantage of HD CCTV is that it can provide higher resolution images, there are more pixels available. Our 1080P HD equipment has over 2 million of Best CCTV Services in Pakistan pixels per frame as opposed to 400,000 pixels found in a standard definition image. It is important not to waste this advantage you still need to use a camera with the correct optical range. If you use a wide-angle camera the pixels spread apart rapidly as you move away from the lens. This means image quality is poor even though you are using HD cameras and DVR. The trick is to use the correct camera for your application, (call us on the phone if you need any help choosing) and that way you take full advantage of the HD potential.

In practical terms, our HD 1080P systems have about twice the range and can film nearly three times the width compared to standard definition CCTV whilst maintaining the same pixel density.

Many people claim improvements of 5 times because HD 1080P has 5 times more pixels than standard definition  but this is not the case for two reasons. Firstly 1080P has a 16:9 widescreen aspect ratio rather than 4:3, and secondly, pixels spread horizontally and vertically as you move away from the camera so the area squares, not doubles. Your benefit is the square root of any increase.

With HD 1080P you can cover a wider area and still identify people. Standard D1 CCTV equipment allows you to film about 3.5 meters wide and identify people, as you can see from the images below this increases to about 8 meters with HD 1080P equipment.

HD CCTV has finally come of age and has the potential to be a credible solution with significant benefits over standard definition D1 or 960H resolution CCTV. But the majority of HD systems out there are rendered useless because of a few common mistakes leaving you unable to clearly identify people or record vehicle registration .

Courtesy:Best CCTV Services in Lahore