manual settings - shutter speed

22
Using your camera on manual settings. Exposure Shutter speed Aperture Light meters Film speed / ISO

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PowerPoint - explaining using the shutter speed

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Page 1: Manual Settings - Shutter Speed

Using your camera on manual settings.

• Exposure

• Shutter speed

• Aperture • Light meters

• Film speed / ISO

Page 2: Manual Settings - Shutter Speed

Exposure

• Correct exposure – records all tones as they were in the original subject.

• Overexposure – all tones are lighter than in the original subject, highlights look bleached out and lack detail

• Underexposure – all tones are darker than in the original, shadows lack subtle detail.

Page 3: Manual Settings - Shutter Speed

Over exposed Correctly exposed Under exposed

Page 4: Manual Settings - Shutter Speed

Underexposed photograph, not enough light let into the camera, all tones darker than original, shadow areas lack information and detail.

Page 5: Manual Settings - Shutter Speed

Overexposed photograph, too much light has been let into the camera, all tones are lighter than original subject, highlights are ‘blown’ and lack information and detail.

Page 6: Manual Settings - Shutter Speed

Correct exposure, tones look similar to how they appeared at the original scene, there is still subtle detail in the shadows and highlights even in this case where there is extreme contrast between the lightest and darkest areas.

Page 7: Manual Settings - Shutter Speed

Three things control exposure

•Shutter speed.

•Aperture.

•ISO

Page 8: Manual Settings - Shutter Speed

Shutter speed

• The shutter is a blind inside the camera that opens and closes when the shutter release button is pressed.

• The amount of time this shutter is opened can be changed to control the amount of time light enters the camera.

• Common shutter speeds in DSLR cameras range from 1/4000 second to 30 whole seconds and ‘BULB’ setting enables the shutter to be open as long as the shutter release button is pressed down.

• The shorter the time (e.g. 1/4000) the less light is let in.

• The longer the time (e.g. ½) the more light is let in.

Page 9: Manual Settings - Shutter Speed

Shutter inside the back of SLR film camera. Similarly positioned inside the DSLR camera.

Page 10: Manual Settings - Shutter Speed
Page 11: Manual Settings - Shutter Speed

Screen showing Manual settings on DSLR Number on top left – Shutter speed

Number on top right – Aperture (f.stop)

Exposure meter scale below.

Page 12: Manual Settings - Shutter Speed
Page 13: Manual Settings - Shutter Speed

SHUTTER SPEED AND MOVEMENT

Page 14: Manual Settings - Shutter Speed

3 types of movement

• Photographer body movement

• Subject motion

• Camera movement

Page 15: Manual Settings - Shutter Speed

Camera shake

Page 16: Manual Settings - Shutter Speed

FAST SHUTTER SPEEDS

• ‘Freeze’ movement.

• Eliminate camera shake

• 1/4000 = very fast shutter speed

• Tripod not usually needed

Page 17: Manual Settings - Shutter Speed

Fast shutter speeds

Page 18: Manual Settings - Shutter Speed

Recommended shutter speeds

• 1/125 – ‘Freeze’ a walker, still recognise face.

• 1/250 – ‘freeze’ someone running or jumping.

• 1/500 – ‘Freeze’ a cyclist or slow moving vehicle.

• 1/1000 – ‘Freeze’ vehicle moving at 60mph.

Page 19: Manual Settings - Shutter Speed

1/1600

F4.5

Page 20: Manual Settings - Shutter Speed

Slow shutter speeds

• ‘Blur’ movement.

• Cause camera shake.

• 1 second = very slow shutter speed.

• Tripod usually needed to avoid camera shake.

Page 21: Manual Settings - Shutter Speed

1/5 shutter speed

F29 Aperture

-1 Exposure compensation

Page 22: Manual Settings - Shutter Speed

1/5 shutter speed

F29

-1 Exposure compensation