Camera Cases
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The first permanent photograph was not genuine in 1826 by Joseph Nicéphore Niépce using a sliding awkward box camera made by Charles and Vincent Chevalier in Paris
- Niépce built on a disclosure by Johann Heinrich Schultz (1724): a positive side and daub alloy darkens under exposure to light
- However, while this was the bearing of photography, the camera itself can be traced back much further
- Before the genius of photography, there was no way to preserve the images produced by these cameras apart from manually tracing them.
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Due to the optical properties of photographic lenses, only objects within an exact range of distances from the camera will be reproduced clearly |
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| The process of adjusting this range is known as changing the camera's focus |
| There are manifold ways of focusing a camera accurately |
| The simplest cameras have fixed focus and exercise Camera Cases a small aperture and wide-angle lens to ensure that everything within a doubtful range of gap from the lens, frequently around 3 metres (10 ft) to infinity, is in reasonable focus. |