Question 2
(a) List four materials required for the construction of a pin-hole camera.
(b) Mention three parts of the pin-hole camera.
(c) State four contributions of the pin-hole camera to the development of photography.
Observation
A practical question which required the candidates to list/mention/state the materials for the construction, three parts and the contributions to the development of photography of the pin-hole camera. Only few candidates attempted the question and scored low marks. The candidates performance was poor. The candidates were expected to provide the following answers to the question:
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Metal can/box;
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Straw board/plywood/cardboard;
- black tape;
- ruler;
- knife;
- pin;
- black paint;
- gum
- aluminium foil.
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Metal can/box;
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- Pinhole/light opening;
- Light-tight Casing/box;
- Image board/back screen.
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Contributions
- Exposed the concept of image formation;
- development of optical lenses;
- development of camera;
- development of sensitive materials e.g. films, papers and sensors;
- development of photographic chemicals;
- establishment of photographic industries e.g.
- recording historical events;
- educational teaching and learning materials