Exposure
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?What is
Exposure
The total amount of light allowed to ?What .fall on toisthe sensitive medium
Exposure
intensity
Size
Speed
)Sensitivity )ISO
Film or CCD
Shutter
Lens
Aperture
Light
Brightness
Factors control Exposure
The Aperture to control the amount of light
Overlapping blades that can be opened and closed to let in more or less light.
their is a standard number for the aperture , f1 , f2 , f2.8 , f4 , f5.6 , f8 , f11 ......, f16, f22 , f32
Shutter speed to control the length of time Or The time of exposure.
Their is a standard number for the shutter speed 1 , 2 , 4 , 8 , 15 , 30 , 60 , 125 ,250,.....
Shutter Types Central shutters shutter
Focal Plane shutter
The Less
ISO The more
Light needed
?Equivalent
Exposure
.F5.6
1/500 sec
=
.F11
1/125 sec
How
?
Exposure meter Works
Gray % 18
Light meter Aim is to get any object in 18 % Gray
Gray % 18
Gray % 18
Gray % 18
Exposure Metering Methods Average
Exposure Metering Methods Centre-weight
Exposure Metering Methods Spot
Exposure Metering Methods Multi-segment
Evaluate
Exposure .digital camera
in
In Bloom. Costa Rica— February, 2003 Canon EOS 1Ds with 16-35mm f/2.8L lens @ 24mm. ISO 200
Exposure
The total amount of light allowed to ?What .fall on toisthe sensitive medium
Exposure
intensity
Size
Speed
)Sensitivity )ISO
Film or CCD
Shutter
Lens
Aperture
Light
Brightness
Factors control Exposure
The Aperture to control the amount of light
Overlapping blades that can be opened and closed to let in more or less light.
their is a standard number for the aperture , f1 , f2 , f2.8 , f4 , f5.6 , f8 , f11 ......, f16, f22 , f32
Shutter speed to control the length of time Or The time of exposure.
Their is a standard number for the shutter speed 1 , 2 , 4 , 8 , 15 , 30 , 60 , 125 ,250,.....
Shutter Types Central shutters shutter
Focal Plane shutter
The Less
ISO The more
Light needed
?Equivalent
Exposure
.F5.6
1/500 sec
=
.F11
1/125 sec
How
?
Exposure meter Works
Gray % 18
Light meter Aim is to get any object in 18 % Gray
Gray % 18
Gray % 18
Gray % 18
Exposure Metering Methods Average
Exposure Metering Methods Centre-weight
Exposure Metering Methods Spot
Exposure Metering Methods Multi-segment
Evaluate
Exposure .digital camera
in
In Bloom. Costa Rica— February, 2003 Canon EOS 1Ds with 16-35mm f/2.8L lens @ 24mm. ISO 200
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