For instance, all HD cameras are megapixel but not all megapixel cameras are HD. HD cameras are referenced as 720p (1MP) and 1080p (2MP). In HD technology 1080p is the greatest pixel density but megapixel is available as high as 16MP.
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1080p is roughly about 2MP. Anything above 1080 is considered to be HD. 4MP is a more pixel-per-square-inch format and can offer higher quality.
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Full HD is the resolution you often see with televisions and projectors, Blu-ray players, and video content. The image is 1920 pixels wide and 1080 pixels high, which gives a total of 2.07 megapixels.
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The numbers 720 and 1080 refer to the horizontal resolution. Therefore, 720p HD camera resolution provides images that are 1280 x 720 pixels (that adds up to 921,600 pixels, which means a 720p HD camera is not technically a megapixel camera), and 1080p HD cameras provide 1920 x 1080-pixel resolution, or 2.1 megapixels.
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1080p (1920×1080 progressively displayed pixels; also known as Full HD or FHD, and BT.709) is a set of HDTV high-definition video modes characterized by 1,920 pixels displayed across the screen horizontally and 1,080 pixels down the screen vertically; the p stands for progressive scan, i.e. non-interlaced.
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It’s no longer true that the higher a camera’s megapixel count the better. The only thing more megapixels will give you is the ability to enlarge and crop pictures without individual pixels becoming visible. Other factors are much more important in determining overall picture quality.
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2MP cameras are already considered high definition (HD) cameras, while those that reach or exceed 8MP fall into the ultra high definition category (UHD). These are the security camera resolutions that are most widely used as they provide a high level of detail.
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Compared with 1080p/2-megapixel, that’s two times more detailed than Full HD 1080p. The same with the 1080p resolution, 4MP resolution keeps the 16:9 video aspect ratio which allows it perfectly fit the HDTV, and the future Ultra HDTV widescreen displaying.
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1080p vs. 3MP/4MP/4K IP security cameras: 3MP, 4MP, 4K and higher megapixel security cameras will provide higher resolution images and wider coverage than 2MP Full HD (1080p) IP security cameras, but more storage space and bandwidth are also required.
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Megapixel is the term refers to the size of an image, usually used in a photo from a digital camera or camera phone. The resolution of digital cameras and camera phones is measured in megapixels . For example, a 2 megapixel camera means it produce images with 2 million total pixels.
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If the camera resolution is 1920 x 1080 pixels (2-megapixel), then our widest field of view is: 1920/80 = 24 ft. (7.3 m).
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Full HD is just another term for 1080p or 1920×1080, and those are all ways of referring to the same resolution. By contrast, 4K has a resolution of 3840×2160. That’s a lot more pixels in the overall image — totaling over 8 million pixels. As always, the higher the resolution, the sharper the picture will be.
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HD: 720p image resolution (1,280 x 720 pixels – approximately 1 million total pixels) Full HD: 1080p image resolution (1,920 x 1,080 pixels – approximately 2 million total pixels) Ultra HD: 4K image resolution (3,840 x 2,160 pixels – approximately 8 million total pixels)
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4K IP cameras have a wider field of view than 2MP 1080p cameras and offer larger a larger aspect ratio and more resolution. A single 4K camera can typically cover more area which means fewer cameras.
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The 5MP security cameras have better clarity than the low megapixel cameras, thanks to their improved resolution. For example, the 5MP IP camera is sure to be at least twice clearer than the 2MP (1080p) ones.
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Overall, the 5MP provides much clearer images with one major caveat; it is nearly twice the price. I have had the 2MP camera for almost 1 year. It has survived the hot summer living in the desert and not had any problems.
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A camera with 10-20 megapixels is going to, in most cases, be more than capable of meeting all your needs. You’d be served far better by saving money on your camera and investing in better lenses.
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As mentioned above, somewhere between 24-36-megapixels is the sweet spot for most creators out there. I know many photographers out there will rush out to buy a Canon — or any other brand high-megapixel camera — because they love the tech more than anything else, and that’s fine.
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According to scientist and photographer Dr. Roger Clark, the resolution of the human eye is 576 megapixels. That’s huge when you compare it to the 12 megapixels of an iPhone 7’s camera. But what does this mean, really?
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The 4K label on a camera means that the device will record images at a level of about 12 megapixels or video at double the resolution of a standard HD TV (1920 x 1080).
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Which MP works best for the front camera? For most everyday camera use, a quality 6-megapixel camera is sufficient.
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Picture Quality
For many, there will be little to no noticeable difference between 1080p — known as Full HD — and 720p — known as HD. However, those who pay more attention will definitely notice that 1080p results in a smoother, clearer image, and that 1080p is clearer than 1080i.
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