Aperture- A opening through which light travels coupling between lens.
Shutter- A device on the camera that allows light on to the film or the digital camera picture.
Exposure- allowing the image capture device to be exposed to the image of the scene.
Depth of field- A characteristic of a camera that can be used to enhance the image composition of the photo.
F-stop- The setting of adjustable lens aperture, as indicated by an f number.
Focal length- The distance between the imaging surface plane and a point where all light rays intersect inside the lens.
Front buttons
Shutter button- controls the shutter to open to capture a picture and then it closes.
Flash button- The flash button controls the light that brightens the picture.
Power switch- Turns the camera on.
Lens release button- Is responsible for releasing the lens from the body to facilitate removal.
Mode dial- A dial used on digital cameras to change the camera's mode.
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