Shutter Speed & Aperture. Exposure Exposure Explained The very beginning Overexposure—too much light Underexposure—not enough light.

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Presentation transcript:

Shutter Speed & Aperture

Exposure Exposure Explained The very beginning Overexposure—too much light Underexposure—not enough light

Exposure = Aperture + Shutter Speed What is Exposure? What affects Exposure? How do they affect Exposure? What happens when they are misaligned? And ONE MORE VIDEO on exposure. (yeah!?)ONE MORE VIDEO

ISO ISO Explained It is your film’s sensitivity to light 100 ISO has the highest quality 3200 ISO is appropriate for sports 100 or 200 ISO would need a tripod indoors

Shutter Speed How long the shutter stays open to take the photograph. How the shutter works….

Shutter Speed on our cameras… On a Manual SLR camera The shutter is changed by spinning the dial Speeds on this camera: 1/1000, 1/500, 1/250, 1/125, 60, 30, 15, 8, 4, 2, B On a Digital SLR camera On a Digital SLR (Nikon D3000) Set the camera to Manual (M) Spin the dial Speeds on this camera: 30 sec- 1/4000

Slow Shutter Speed (1/30 or slower)

Using a Fast Shutter Speed (1/250 or higher)

You can try to show or stop motion while your camera is an automatic mode… Night Photo Option to show motion Sports Photo Option to freeze motion

Aperture Aperture is the opening through which light travels—the size of the opening dictates the amount of light allowed in.

How the Aperture works… Depth of Field Explained Watch these videos to further explore aperture and depth of field.

Large Aperture opening = Shallow Depth of Field f1.8, f2, f2.8, f4, f5.6 *the smaller the number, the larger the opening*

Small Aperture Opening = Large Depth of Field f8, f11, f16, f22 *the larger the number, the smaller the opening*

Aperture on our cameras… On a Manual SLR camera The aperture is changed by turning the ring so that the Fstop lines up with the red-oragne line Fstops: f1.7, f2.8, f4, f5.6, f8, f11, f16 On a Digital SLR camera On a Digital SLR (Nikon D3000) Set the camera to Manual (M) Hold the exposure button & spin the dial Fstops: f5, f5.6, f6.3, f7.1, f8, f9, f10, f11, f13, f14, f16, f18, f20

The Light Meter Nikon D3000 This is the menu which shows on the screen. In the middle you see a graph from + to –. Proper exposure is achieved when the small lines are exactly in the middle. Far to the left creates an overexposed image. Far to the right creates an underexposed image.

The Light Meter cont’d. Our Pentax cameras have a wand that moves up and down as you change your settings. You want the wand to be in the middle and pointing straight out into the frame.

Now you try! Follow the directions on the handout while using the Camera Simulator Camera Simulator