Introduction de notre dossier

L'introduction des dossiers devait être réalisé dans une langue étrangère. Nous avons choisi l'anglais

The reflex is a type of camera. It is well known for the fact that the image that we see in the eyepiece is the same as the image that come across the lens in opposition to the others types of cameras whose eyepieces is located above the lens. Furthermore most of the reflex lenses are exchangeable. That fact allows the user to adapt himself to almost all situations - photography of sports, animals, macro photography, portrait ...

Moreover the user can adjust a lot of settings : the diaphragm modify the depth of field and the brightness, the focal distance change the enlarging of the picture, shutter speed allows to change the brightness and allows to make blurry effects.

This file is a study all the elements that are involved in the modification of the image and the way they affect it depending on the settings.

Here is a schema that locates the different elements which has been studied. The yellow line represents the way of the light.