Digital cameras abound with software based features and functions. Such features can be useful but are usually less important than hardware features. For example, every camera you consider should have a built in flash and a viewfinder for framing the picture.
Avoid cameras that force you to use the battery draining display screen to compose pictures. One important software feature is the plus or minus brightness control so you can adjust picture brightness during picture taking.
Resolution is a key factor in how big you can print and how much you can crop your pictures. It also affects camera cost. The higher the resolution, the greater the cost. For general picture taking, we recommend a camera with a 2 to 3 megapixel resolution.
In addition to a cameras maximum resolution, review its other resolution settings. Many offer a range of settings, which can be convenient to fit more pictures on a picture card or save time making later adjustments. For instance, if you know you will only e mail a particular picture; you could set the resolution setting low and not have to resize the picture later.
Resolution is the digital version of square footage. In other words, how many pixels (picture elements) are there on the sensor that creates the picture? The sensor is the digital equivalent of film only it is used over and over.
Resolution is expressed by the number of horizontal pixels on the sensor multiplied by the number of vertical pixels. Glass gives much better quality pictures. Is it a zoom lens or a non zoom lens? A zoom lens adds costs but also great versatility. With a zoom lens, you can magnify subjects or shrink them to include more area in the picture.
Digital zoom should not be an important factor in choosing a camera. In effect, it crops the picture as you take it, reducing resolution of the picture and the size you can print it. Optical zoom is superior to digital zoom.
An optical zoom gives great versatility while maintaining picture quality. With an optical zoom, you adjust the lens to magnify or expand the area shown in your picture. Because it uses the lens, the resolution and thus the picture quality remains the same. A magnification number, such as 3X or 4X, indicates the range of zoom.
Digital zooming capacity is short as compared to optical one. Digital zoom do not give superior versatility and performance, but optical zoom does it. Therefore, it recommended considering what you want to compromise either quality or cost?