Out of all the steps involved in taking a photograph, the one that creates most impact is correct composition. It is also the one that is the most fun and where you are likely to have the greatest control. It follows, then, that getting composition right in the viewfinder at the time of shooting will yield the best results with regard to the final image.

So, how can you ensure great composition and a great image?

fill the viewfinder: if your subject is too far away, get closer; if it is too near, move further back. Alternatively, use a zoom lens to alter the relative size of the subject in the viewfinder

avoid empty space: look around in the viewfinder and only choose to shoot when you are certain all the elements you require are in view

don't just look at the subject: check the background and the foreground. Are there unsightly objects or distractions? If so, what can you do about it? Moving your subject might be an option. Otherwise you can either remove the distractions or shoot from a different angle

check your viewfinder: next time you have your camera to your eye, look around at the whole field of view in the viewfinder. Look at the edges, the top and bottom and both sides. It is so easy just to focus in on the subject without being aware of the huge spaces around it

isolate your subject: anything near to the subject will create a distraction. You can isolate it in a number of ways: move the subject or move the distractions; use a larger aperture to throw the foreground an background out of focus; wait until the surroundings get clearer (e.g. when taking pictures in crowds); get in close

turn your camera: most cameras have a rectangular screen and picture taking capability. Most shots will be in landscape format (with the long sides of the image at the top and bottom resulting in a postcard-shaped image). If you turn the camera 90 degrees you then have "portrait" view. Try using this for some of your subjects and see what difference it makes

Many of these steps may seem simple, but you will be surprised how many photographers ignore basic rules. By thinking about your composition when you take your photography, you will enhance the potential of the final image and improve your photographic skills.

Eric Hartwell runs the photography resource site http://www.theshutter.co.uk and the associated discussion forums as well as the regular weblog at http://thephotographysite.blogspot.com