3. dslr photography 101 - exposure
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UNDERSTANDING EXPOSUREAfter all, it’s all about painting with light!

WHAT’S A WELL EXPOSED IMAGE?

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EXPOSURE TRIANGLE
Aperture
Sensitivity/ ISOShutter Speed

APERTURE

TIME/ SHUTTER SPEED

SENSITIVITY/ ISO

Control Aperture

Aperture: f/5.6

Aperture: f/5.6
Aperture: f/13

Control Shutter Speed (S)
Paul Bica

Shutter Speed - 8s
Paul Bica

Shutter Speed - 8sShutter Speed - 1/1000
Paul Bica

Control ISO

ISO:800

ISO:800
ISO:800

Why not always shoot at a high ISO?

© exposureguide.com

SLOW SHUTTER OR FAST?

SLOW SHUTTER OR FAST?
Shutter Speed: 1/2000th of a second
©Anuroop Krishnan

SLOW SHUTTER OR FAST?
Shutter Speed: 1/2000th of a second
©Anuroop Krishnan
Shutter Speed: 1/15th of a second©Anuroop Krishnan

Absolute rubbish
You control the cameranot the other way around

DEPTH OF FIELD

FOUR FACTORS INFLUENCING DOF
Depth of
Field
Aperture Distance
Focal LengthPerspective


How about perspective?

GET AT EYE LEVEL
© Dr Caesar Sengupta

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A FEW SPECIFICS

Ever wondered what this means?

HighlightsShadows
White point
Black point
Dark to bright, from left to right

Clipped Highlights
A potentially overexposed image

Clipped Shadows
A potentially underexposed image

A tough to correct image

An easy to enhance image
Subtle Shadows Subtle Highlights

Seeing the world as 18% gray


What you see

What you see What your camera sees

So…

What you see

What you see What you photograph

What you see

What you see
What you photograph

Metering

Auto Daylight Cloudy Shade
Tungsten Fluorescent Flash Custom
White Balance

Focussing
Single-point Spot AF (Manual Selection)
for pinpoint focusing
Single-point AF (Manual Selection)
AF point expansion (Manual Selection)
AF point expansion (Manual selection
surrounding points)
Zone AF (Manual selection
of zone)
61 point automatic selection AF
Focus Point Selection

ONE SHOT AI SERVO AI FOCUS
Focussing Modes

Drive


Some homework