3. DSLR Photography 101 - Exposure

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