Tips for the Best Digital SLR Camera

Image: David Garcia via Flickr

Maybe you’re an amateur shutterbug itching to upgrade your snappy point-and-shoot.

Maybe you’re a MWAC (Mom With a Camera) wanting to upgrade to a MWARBC (Mom With a Really Big Camera).

Maybe you’re about to embark on a huge vacation and you want the proper camera to do your vacation pictures justice.

Whatever your reason, you’re looking to jump into the deep sea of serious digital photography: you’re ready to buy your first digital SLR camera.

What Makes an SLR an SLR?

SLR stands for “Single Lens Reflex.” A single lens reflex camera is deemed “best” by professional photographers because they allow photographers to look through the viewfinder and get the most accurate preview of what will turn up in the final photo.

That’s because digital SLR cameras use a mirror behind the actual lens to mimic what the lens sees when it takes a picture: you see a mirror image, you press the camera button, the mirror quickly swings out of the way and the camera takes the picture.

This design allows for numerous lens focal lengths and offers maximum versatility in photography. If you’re serious about digital photography, you’ll want a digital SLR camera.

Read the Most Current Reviews

New digital SLRs are being put on the market every year. The best DSLR cameras of 2012 are vastly different from the best cameras of 2010, boasting far more features, battery life, and specialty modes than their predecessors. Reading reviews can help you distinguish between actual amazing new technology that you’ll need¬†and the bells and whistles that aren’t necessary.

Some of the top brands for digital SLR cameras include Canon, Nikon, Olympus, and Sony. These are the brands you’ll want to look at when shopping for a digital SLR. Also understand the huge difference between professional-grade DSLRs and entry-level DSLRs. If you’re new to the world of Manual mode, you’ll want to go with an entry-level DSLR.

The Canon Rebel DSLR Line

The Canon Rebel line is one of the most popular entry-level digital SLR cameras on the market. The camera is easy-to-use and produces high-quality pictures that are good for both amateur and midrange photographers alike. It’s also relatively lightweight compared to pricier models on the market.

Best of all, the Canon Rebel boasts one of the most reasonable prices on the market, making it affordable for average users (though be forewarned that purchasing various lenses will drive up your costs considerably).

 

IMPORTANCE OF CCTV

Security camera at London (Heathrow) Airport. ...

Image via Wikipedia

CCTV is a short term for Closed- Circuit television is nothing but a video camera which focuses on a particular area capturing the video signals. The most appropriate term for CCTV would be Surveillance camera. CCTV is used in areas that might need constant monitoring such as military related areas, banks, railway stations, airports and general stores.

It is widely used in industrial areas such as thermal power plants, radio substations, and pharmaceutical labs and places especially where it is considered highly hazardous for manual interactions. The processes are closely watched through a central control unit using the surveillance cameras.

The usage of CCTV in banks and general stores increased rapidly for security purpose and to avoid theft. The use of these cameras were highly popularized to such an extent that now United Kingdom uses CCTV in public places along the streets that reportedly there are more number of cameras for one single person to keep a watch.

CCTV is often used to supervise the various conditions that take place in the industrial process which are harmful for humans. For instance they are mainly used in chemical industries, power stations, inner area of the thermal reactors. Special CCTVs such as thermo graphic cameras are used to sustain such conditions.

Many countries have adapted CCTV for the purpose of traffic monitoring at the highways to detect accidents and to avoid traffic congestions. The latest camera in this technology instantly reads and detects the registration plates of the vehicle. This is greatly used in crime detection and to detect the stolen vehicles.

Although there are many uses and importance of the surveillance camera, it has its own disadvantages too. The hackers might use it to hack the records from the control room and access information. Few criminals place the CCTV in ATMs such that the users PIN no without their knowledge.

The iPhone 4: Wow

iPad, iPhone, MacBook Pro
Image via Wikipedia

Apple just does not do anything halfway, do they? When Apple says they are coming out with a great new piece of technology, they come out with a bang, even when Mr. Jobs steps off the stage to the roaring applause of people he has made rich. And the iPhone 4 is no exception to this universal rule. It boasts the most impressive screen to ever be featured on a phone, as well as a host of other high end features. Simply put, there is absolutely no other phone on the market today which can compare to what Apple has produced this time. But of course, this is the kind of article where it will probably be true ten years from now, if we just change it to the iPhone 20, or something.

Most phones these days have a camera on them. Some high end phones have 3 megapixels or more in resolution. Well, this is the iPhone, so it has two cameras. And one of those cameras is not only 5 megapixels (that’s 5 million pixels, or a pretty big image). It also have a 5x digital zoom. So it doesn’t really matter how much you want to see of the image- it will enter the camera at a quality level that could be used as evidence very easily. But that isn’t all.

Once you have an image on the iPhone 4, you can see it better than any camera on planet Earth. With a set of pixels 78 microns wide, they squeezed in 326 pixels per inch on this bad boy’s screen. If you want to see something and it’s there, you will see it (unless you’re blind, or have your eyes closed). Couple that with the fact that you can now video call people (which could be bad if you just got out of the shower or something), and the iPhone 4 is the best thing to ever happen to smartphones today.