A megapixel (one million pixels) is a unit of image-sensing capacity in a digital camera. A pixel - shorthand for "picture element" - is the basic unit of programmable color on a computer display or in a computer image. In general, the more megapixels in a camera, the better the resolution when making larger prints.
When the button is pushed to zoom in or out, physical lens elements move inside the camera to achieve the desired effect. Optical zoom lenses actually “move” you closer to the subject of the photograph. The higher the optical zoom rating on a camera, the farther away you can be to take a photograph and still get a clear, close-up image.
Digital
cameras use the LCD screen as a viewfinder by providing a live video feed of
the scene to be captured. The LCDs normally measure between 1.5" and 2.5"
diagonally (our LCDs measure 2.5 to 3 inches).
Standard on many of our cameras, Auto Adjust Brightness automatically adjusts the camera's LCD viewing screen to the existing lighting conditions. No more struggling to see the LCD in bright sunlight; the camera will adjust it so you can frame your picture properly.
Image Stabilization automatically overcomes shaking or blurring caused by accidental hand movement, helping you take clearer, sharper pictures.
The camera detects faces in a scene and then automatically focuses and optimizes exposure for them. This technology helps when taking pictures of large groups, when a person is in the distance or when the subject moves into the frame.
The camera's sensor detects when subjects are smiling and releases the shutter automatically when the smiles reach their peek. No more battling shutter lag times to get the perfect picture.
If subjects blink as a photo is snapped, the camera alerts the user afterwards. This allows the photo to be immediately retaken.
ISO denotes how sensitive the image sensor is to the amount of light present. The higher the ISO, the more sensitive the image sensor, which means improved ability to take pictures in low-light situations. With a digital camera, you can change ISO speeds on the fly because you don't have to replace rolls of film rated for those speeds.
Allows for the creation of ultra-wide panoramic shots. Wide-view photos are produced by stitching three images into a single panoramic picture, providing an image that is wider than would be possible with a standard lens.
Red-eye removal provides users a tool to remove the appearance of red eyes in subjects, which sometimes occurs when pictures are taken using the flash.
