Chapter 2.5 Photography – Setting Camera Modes
About Lesson

In “Program” mode, the camera selects the Aperture and Shutter Speed automatically, depending on the quantity of light entering the lens. This is the mode to engage for “point-and-shoot” situations, when you need to rapidly capture an image. The camera will seek to achieve a balance between aperture and shutter speed by raising or reducing the two dependents on the light intensity. If you aim the camera towards a bright place, the aperture will automatically widen while the shutter speed stays relatively fast. In order to preserve a faster shutter speed, the aperture will be decreased when the camera is pointed towards a dark region. If there is weak light, the lens aperture will simply stay at its widest level (maximum aperture), but the shutter speed will continue to decrease until the exposure is correct.