This exercise required me to take two photographs of the same object, (in this case a fenced off tree) firstly with a long focal length and then a short focal length. It also required me to make sure that the subject took up roughly the same amount of space within the frame. The first shot was taken from over 10 metres away; the second shot from no more than 2 metres. Although the exercise required me to walk in a straight line toward the subject between shots, I did have to adjust the angle of the second shot slightly in order to get a similar angle on the fenced off tree in the background. I needed to do this to enable me to show the disparity - from one image to the next - in apparent distance between the two trees .
The compression effect of the longer lens compared to the wide angle lens is quite remarkable and it is an interesting feature to remember when composing shots. At first I didn't quite believe that the images were of the same pair of fenced trees, but looking closely at the breaks in the fence you can see that they are indeed the same pair.