High Definition

2K and 4K IP security cameras offer the best video clarity available

The movement beyond 1080p full HD image resolution has begun. Terms such as 2k Extreme HD and 4k Ultra HD are now becoming everyday words when people speak of television screens, computer monitors, or mobile phone resolutions. But what do they mean? And what does it have to do with the future of security systems?

What makes an image 2K and 4K?

For an image to be classified as 2K Extreme HD it must have approximately 2000 horizontal pixels. Following suit, 4K Ultra HD must have approximately 4000 horizontal pixels.

8,847,360 pixels

The amount of pixels within screens has taken a giant step forward with 2K and 4K resolutions. Industry standards typically represent the 2K Extreme HD pixel ratio as 2048 x 1536 and 4K Ultra HD as 4096 x 2160.

2K and 4K surveillance cameras from Dahua

The future of security monitoring

The Lorex 2K and 4K IP cameras will leave nothing to question. With their crisp images and amazing digital zooms, you will have the best chance to capture details you need, even from a distance. With the introduction of these new security cameras, the world of security monitoring has never looked better.


Images are incredibly crisp, with sharp definitive lines that distinctly outline every object and feature.

Digital zoom

The higher amount of pixels allows for a higher quality digital zoom so you can see further into the distance.

Color & night vision

Larger image sensors capture more light, which improves color, contrast, and low-light performance.

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4K (8mp) IP Security Camera

8mp IP cameras from Dahua are an ideal solution whether you are in the market for a new security camera or looking to upgrade. Not only will they noticeably improve the video quality of your security footage, their rich feature set will provide you with many other advantages:

PoE enabled

Easy Power-over-Ethernet installation

Night Vision

Improved recognition of objects in low light conditions

Intelligent compression

In-camera video encoding saves recording space

Wide angle lens

88° horizontal field of view provides extensive coverage

IP66 Weatherproof

Outdoor cold climate capability (-22°F / -30°C)

High resolution image sensors

A major determining factor in image quality is the camera’s image sensor. These sensors are classified by their number of megapixels (the equivalent to one million pixels). For instance, a 4-megapixel security camera has a pixel resolution of 2688 x 1520, that’s a total 4,085,760 pixels.

Since 2K is defined by having approximately 2000 horizontal pixels, the resolution can vary if you use a 3MP, 4MP or 5MP security camera. For example, a 3-megapixel aspect ratio is 2048 x 1536 (about one and half times bigger than 1080p resolution) while a 5-megapixel aspect ratio is 2560 x 1960 (about two and half times bigger than 1080p). This shows that even though both can be classified as 2K, a 5-megapixel security camera has a much higher resolution.

Image Resolution # of Megapixels Pixel Ratio
1mp | HD 720P 1280 x 720
(921,600 pixels)
2mp | Full HD 1080P 1920 x 1080
(2,073,600 pixels)
3mp | Super HD 2K 2048 x 1536
(3,145,728 pixels) 1.5 x 1080P
4mp | Super HD 2K 2688 x 1520
(4,085,760 pixels) 2.0 x 1080P
5mp | Super HD 2K 2592 x 1944
(5,038,848 pixels) 2.5 x 1080P
8mp* | Ultra HD 4K 3840 x 2160
(8,294,400 pixels) 4.0 x 1080p

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