Aperture- an opening, hole, or gap

shutter- to keep light out

exsposure- the process of allowing light reach the film

Depth of field-the distance between the nearest and the furthest objects that give an image judge to be in focus in a camera

F-stop-a camera setting corresponding to a particular f-number

focal Length- the distance between the center of a lens or curved mirror and its focus

1.Flash button give light to the image

2.power switch turns it off and on

3.erase button  deletes the pictures

4.setting button sets the camera

5.menu button all the home screen