Review of Digital SLR Cameras Reveals Interesting Information

Online, November 2, 2010 (Newswire.com) - A recent review of digital SLR cameras by Online Niche Marketing (ONM) reveals some very interesting facts about the functionality of these cameras. It found that professional photographers prefer SLRs because they allow an accurate preview of framing close to the moment of exposure and allow the user to choose from many different interchangeable lenses. More information on this study and SLR cameras are available on its website: http://www.digitalslrcameras-311.com/

So what does SLR stands for and how does it work? Well, digital SLR is short for single lens reflex, it uses a mechanical mirror system and pentaprism to direct light from the lens to an optical viewfinder on the back of the camera when composing a photo. The mirror swings quickly out of the way when shutter is released allowing light to travel from the lens to the sensor while blacking out the viewfinder momentarily. "All of this happens automatically over a period of milliseconds, with cameras designed to do this 3-10 times per second", according to ONM review.

"One of the major reason SLRs dominate serious photography is because it allows camera to accommodate a very wide range of lens focal lengths", said ONM. Otherwise, one has to match the angle of view of the "taking" lens with that of the "viewing" lens. That becomes increasingly complex and expensive viewfinder mechanisms to cover a wider range of focal lengths. SLR technology eliminates that since taking and viewing lens are one and the same.

According to ONM, "When most people say "digital SLR", they typically refer to "Interchangeable-lens Full System Digital SLR". What sets them apart from other types is the ability to remove one lens and replace it with another, say, ultra-wide-angle to super-telephoto". Although there are many different vendors for SLRs, top of the line models for the digital SLRs are from Canon, Nikon, Panasonic, Olympus, and Pentax. "If you are in the market for new camera, look into digital SLRs, you will find them exciting" ONM added.

To learn more about digital SLR cameras visit http://www.digitalslrcameras-311.com/