Thursday, January 23, 2014

How do I know which megapixel camera to get? A 10 or an 8?

megapixel analog camera
 on Why IP Cameras - IP vs Analog - Security Cameras
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Crystal


I've been reading reviews on some cameras and some people say just b/c a camera megapixel setting is higher doesn't mean you'll get a better picture. Is this true? I notice that some 8 megapixel cameras get really good reviews and are cheaper than the 10 megapixel cameras. The 10 megapixel cameras get really good reviews too, but are more expensive. How do I know what camera to buy?


Answer
Pay no attention to the megapixels. Every modern camera has more than enough for anything you would want to do. In fact to many megapixels on a tiny sensor can be worse.

The biggest determiner of image quality would be the optics (lens). On point and shoot cameras I would go for the one with the most zoom. With an SLR you should get the best lens you can afford.

Next would be the analog to digital converter (the inner workings of the camera). This is how the camera takes what it sees and converts it to a digital image.

Next would be the sensor size. Point and shoot cameras have tiny sensors. SLR's have much larger sensors. As much as 15 times larger. This is why a 6mp DSLR will take a far superior photo than a 12mp point and shoot.

Finally would be the amount of mega pixels. While technically speaking the more mp the larger and more detailed you can blow up a picture. The problem comes in the size of the pixels not in how many there are. Tiny pixels generate more heat on the sensor. More heat equals more noise or grainyness to your pictures.

So I would encourage you to look at all the other features of the camera. The one that has the features you want is the camera you should get.

What kind of security camera system should I buy to watch my house from a laptop?




el aji


I've heard-of a security camera system that I could watch my home from a laptop while at work. What company should I refer to get this setup, and will any laptop work?


Answer
Hello

Not all DVRs are created equal, in fact there are many options that offer varying performance much like the automobile industry. In the world of DVRs you can find the equivalent of a $10,000 Kia and a $350,000 Ferrari and everything in between. Both have 4 wheels and windshield but that where the similarities end, itâs under the hood that counts. Just like any other consumer electronic in the end you get what you pay for.

I suggest you buy a PC based DVR has they have more processing power and normally have a much smaller file size and offer more features then Standalone DVR's. I know many people buy a cheap standalone DVR, only to upgrade to a PC based in 6 months especially when they are using it to manage a store remotely. Also PC based allows you to record up to 64 cameras where a standalone will have a limit of 16.

Many people have the misconception that a PC-Based DVR is simply an off-the-shelf PC with video capture (encoder) cards, display (decoder) cards and some generic OEM software. A true DVR requires years of research and development to facilitate the seamless integration of both the hardware and software. DVRs are highly complex systems that must run 24/7, processing millions of images per day. This makes consumer-level hardware inadequate for DVRs which is why Ascendent uses custom-built PCs with performance-level hardware.

My personal favorite DVR is Ascendent X4 series: Ascendentâs Tri-Fusion Hybrid Platform allows for the creation of a true hybrid surveillance system by utilizing the advantages of Analog, Megapixel, and IP technologies for unparalleled customization and expandability. I am working on government projects and use Ascendent cameras and DVR because the offer superior performance and cost less then comparable brands like bosh, Honeywell and pelco.

The X4 also uses the latest H.264/SVC codec offer video substantially better quality,. While its file size sizes is 30% smaller than MPEG-4, 60% smaller than MPEG-2, and exponentially smaller than MJPEG.

File size is crucial to streaming because most DVRâs on the market record at real time performance (30FPS per channel) so on a 4CH is trying to send 120, 8CH 240, and a 16CH 480 images per second which requires way too much bandwidth even for the most extreme internet connections.

The smaller the files size the more images are able to be sent, and the faster they can be processed improving both FPS and speed. File size is the heart of any DVR and goes far beyond just its streaming capabilities, as it also determines the recording storage time, how much you can back up at once, how fast it renders and searches video. The file size of a DVR impacts the performance of the DVR in just about every aspect from speed to longevity and is often the most important spec of any DVR.

If you are buying a DVR and streaming is a high priority I suggest you ask for a demo and connect to the DVR to make sure it is able to stream fast enough for your needs. Most DVRs say they have remote viewing but it is often too slow and laggy to be of any use especially if it is a standalone. Some good DVR brands that I recommend are Bosch, Pelco, Honeywell and Ascendent. These brands are what security professionals use, Q-see, Swan and Lorex are only used in residential applications because they are sold by Tiger Direct, Spytown, Newegg, Sams Club, Costco and other retail outlets but are not used by any security professionals also their tech support rarely speaks English as their first language...

These brand manufacturers also have a complete line of CCTV cameras for any application from residential to military.

http://www.ascendentgroup.com (Recommend)
http://www.honeywell.com
www.pelco.com
http://www.bosch.com

Hope this helps

williammorales93@ymail.com




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