CCTV Digital Cameras
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For Strict Vigil Buy CCTV Digital Cameras
by Mark Humphrey
As the world shrinks, crime expands. Even in today's hi tech age, the crime rate isn't getting down. On the contrary, the criminals and terrorist are using new plans and equipments to deceive everyone. One recent example is the bombings in the London metro. So it becomes inevitable and quintessential that there should be an eye on everyone's movements.
To solve this purpose and catch the culprits, a device known as digital CCTV camera is being employed everywhere.
The name CCTV stands for closed circuit television and, in the industry, is known as surveillance camera. The CCTV can be a one camera or the network(s) of multiple cameras linked together through LAN, WAN, Internet or switches. The basic purpose of this camera is to transmit live video on a television screen or monitor, to keep an eye on everyone entering or leaving the building or an area on watch by the camera.
However there are certain tips and methods, which should be kept in mind while purchasing digital CCTV cameras for your organization or home.
CCTV cameras are prominently used to identify the face and personality of a person under a tracing method following any crime. Moreover it also serves as evidence in the court of Law. So it is essential that you place the CCTV cameras in important locations. For this purpose you need to sketch out a floor plan. You should decide all camera location on the plan. You should also judge the distance to the zone you want to put under surveillance, for example are you 10 feet or 20 feet away from your surveillance target area.
It would be advisable that you should place the camera close to the area and then decide on the zoom lens. You should decide whether you would need 8mm or 12mm lens.
The second aspect before buying these cameras is the idea on how much area you want to cover. If you need to cover a wider area, you would be required to buy digital CCTV cameras with wide-angle lens or fish eye lens.
The next most important thing to consider while buying CCTV cameras is the detail requirement or resolution requirement. If you need tighter surveillance, for example you want to capture the license plate number of the car along with the person's face, and then you would need a high-resolution lens. The distance and the details determine which cameras lens 8mm or 50mm would solve the purpose of effective surveillance.
Along with the distance and resolution of the cameras, you also need to take care of their security and damage control. You should consider protecting your camera against vandalism and damage. For this purpose, you can purchase damage resistant cameras as well.
Different CCTV cameras have different light adjustment capacities. Suppose you want to monitor the area only during the daytime, any normal digital CCTV camera would solve the purpose. But if you want tight surveillance even during dim light or night, you should consider buying infrared digital CCTV cameras.
Last but not the least, you should always take care of your budget. You can find some better-than-the-best digital CCTV cameras in the market, but they ask for a daunting price from you. So you should check out with your budget and buy the cameras that solve your purpose to a large extent, if not full.
About the Author
Mark is an avid camera enthusist whose views can be read online at his blog http://www.digitalcamerablogonline.com .
DIGITAL vs. FILM by Jelaine Macaraeg
As anyone might expect, the birth of digital photography, moreover, all the hype about it brought forth controversy. Does its birth mean the end for film? Are digital cameras better as they are “technologically more advanced”? Is digital photography simply film photography gone hi-tech? As I found out, digital is not better than film – and film, is not better than digital. Instead, it’s like comparing apples with oranges – they’re two entirely different fruits with different properties, having their own advantages and disadvantages.
One perfect article to read is the one by Darwin Wiggett, an advertising stock photographer who had his share of working with both film and digital cameras.
As he have learned, and I’m sure a lot of people will agree, digital images are smoother and has a lot less noise, while film images are usually grainy. However, colors seem sharper with film, while digital photos tend to be flat and pale. You might say, “That’s what Photoshop is for! To enhance color and fix everything there is to be fixed!” Well, this brings Wiggett, as well as other professional photographers to another observation. Digital has made people a lot lazier.
When you use film, you always seem to aim for that perfect shot. With digital, you get instant feedback from the LCD screen. This may have an advantage as it also gives you instant opportunity to improve your next shot by adjusting your technique, Of course, you don’t have that luxury with film and that’s exactly what drives you to be focused – so you would get the best shot. With digital, people tend to be “trigger happy,” you’re always thinking, “That’s good enough… I can always fix it with image editor.”
However, what they fail to realize is that they spend way too much time, checking on their LCD, dealing with their batteries, which gets drained oh-so fast, downloading or transferring files and of course, manipulating the images.
In the end, it all boils down to personal preference. And just like in anything, people shouldn’t allow commercialism and marketing make them judgmental or discriminating – especially the newbies. As I always say, you need to pick the right tools for the kind of project you’re working on, depending on your vision of that project. If you have the time as well as the resources, it is recommended that you try both on various projects so that you can make a sound judgment of what works best for you. Therefore, people shouldn’t be thinking Digital vs. Film. Instead, it should be Digital and Film.
With that, let me end this article with Mr. Wiggett’s words, which I find very wise: “A great shot is a great shot no matter how, when, or where it is captured.”
Note:
Link for Mr. Wiggett’s article:
http://www.naturephotographers.net/articles0105/dw0105-1.html
About the Author
For comments and inquiries about the article visit http://www.ucreative.com
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