Focal Lengths

This exercise takes a photograph from the same spot at a wide and long focal length.  The aim of the exercise is to demonstrate that although the object that is taken with the long length appears to be closer, the perspective of the picture does not change – it is in fact identical to the small equivalent area in the wide shot.

The photographs were taken at Dubai Internet City, the place where I work.  They were taken with a full frame digital camera at 24mm and 200mm focal lengths.

 

24mm

200mm

The picture below is cropped from the centre of the wide 24mm shot above.  It can be seen that it is the same as the 200mm shot in all respects.  The quality is lower as it represents a tiny portion of the original picture but the changes in perspective that would have occurred if I had actually moved closer rather than using a longer lens have not occurred (this is the subject of the next exercise).

Cropped from 24mm Picture