advanced digital photography. introductions who why what

Advanced Digital Photography

Introductions

• Who• Why• What

Course will cover

• Exposure• Depth of Field• Manual Mode• Histogram• Lighting

• White balance• Motion Control• Portraiture• Macro photography• Flash photography

Composition ‘Rules’

Photography

• Tell a story• Stir emotion• Document an event• Artistic

Light

•Select subject•Compose the shot•Set the exposure

good photograph

Photography means light drawing

Exposure

How much light?

Source of the light

Time of day

Midday sun• Sharp-edged shadows• High contrast• Shaded areas – limited

or no detail• Sunlit areas – bright

colors• Dramatic effect

Dawn, dusk, (or cloudy days)• Soft light• Limited or no shadows• Subtle tones more

visible• Less dramatic, more

warmth

ISO International Organization for Standardization

ISO Situations 100 - 200 Bright sunny day400 Hazy day600+ Need stop motion1600+ Low lighting

Higher the ISO > Noise

refers to ‘film’ speed indicate the relative amount of light necessary to give a proper exposure.

Noise

Exposure

Aperture• Size of lens opening, like

pupil of your eye• f/22 small opening – f/4

large opening• Determines depth of field

Shutter Speed• Length of time aperture is

open• Measured in fractions of

seconds• Use tripod if speed slower

than 1/125• Above 1/500 can typically

freeze action

Apertures

Depth of FieldDistance or part of the picture that is in focus

f/18 …

… f/4.5

ISO

ApertureShutter

Speed

Correct Exposure????

Metering

-2

+2

Metering Camera Settings

• Evaluative– Standard, average of whole picture– Balanced exposure

• Partial– Less area used to meter (9% from center)

• Center Weight– Small area in the center to meter (4% from center)

Cannon