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:

1. • Metal can/box;
     
   
   
   • Straw board/plywood/cardboard;
     
   
   
   • black tape;
   
   
   • ruler;
   
   
   • knife;
   
   
   • pin;
   
   
   • black paint;
   
   
   • gum
   
   
   • aluminium foil.
   
   


2. • Pinhole/light opening;
   
   
   • Light-tight Casing/box;
   
   
   • Image board/back screen.


3. 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