u Fast Shutter Speed = Stops the Action u Slow Shutter Speed = Blurs the Action (Dragging the shutter) 1/6th 1/500th Photography Basics u Aperture and shutter speed ALSO effect the way the photo looks Same Exposure

u Aperture and shutter speed ALSO effect the way the photo looks u Large Aperture(Low F-Stop no.) = Shallow Depth of field u Small Aperture(High F-stop no.) = Large Depth of field F11 F3.5 Photography Basics Depth of Field = Range of the Sharp area of an image Same Exposure

Understanding Exposure u An Image Sensor needs to be exposed to light for a certain period of time to get a proper exposure u Not long enough – Image too Dark u Too long – Image too Bright u The sensitivity of the Image Sensor to light is called the ISO Incorrect Exposure Good Exposure + =

u Rebel XS’s ISO options are 100, 200, 400, 800, 1600 u The higher the ISO number the more “Noise” that appears in the pictures u The higher the ISO number (ie.1600) the more sensitive the image sensor is to light BUT Increased Sensitivity comes at a price! ISO 200 ISO 800ISO 1600 Understanding Exposure

High ISO Usefulness Dim environments Flash prohibited Telephoto/Sports shot Macro shot