The SLR cameras are referred to this way because of their ability to preview an image in the view finder before it is actually taken. They are popular because of the way you can change the lenses easily to suit different scenes.
What I am saying is that with a non SLR camera the angle of the view finder does not give an accurate representation of what the image will look like after you have taken it. The image becomes even more distorted if you have to zoom in or out. This is where the DSLR cameras then gain the advantage; they will be able to show you exactly how the picture will look like after you have taken it. Some of the best SLR cameras are to be found from anyone of following: buyng canon camera in south africa sony digital camera nikon cameras sa