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4.5. Distortion correction
When photographing high buildings from ground level, the distance from the lens to the top and bottom of the subject are
different. As a result of this, the distortion in this case appears as a convergence of the parallel lines upwards (Fig. 4), and vice versa:
when photographing from above downwards, the parallel sides of the building will be converging downwards.
Fig.4
Fig.5
Sometimes instead of image correction, with the intention of creating special effects, the occasion arises to create even more
exaggerated distortions. In this case, you would incline the camera upwards and shift the lens in the opposite direction.
4.6. Reflection elimination
When photographing objects with reflective surfaces, the reflection of the photographer and camera can appear in the image. (Fig.
6
А
). Carrying over the camera angle to one side and shifting the lens to the opposite side, while retaining the parallelism of the object
and film planes allows you to eliminate the reflection and still preserve the rectangular composition of the image (Fig. 6B).
Fig.6
А
Fig.6B
