FRITZ SCHNEIDER PEACHAM CYBERNETICS

Introduction To Digital Photography

II – Camera Features

Point and Shoot

Automatic settingCamera makes its best guess:

Exposure Focus Color balance

No manual override

Exposure

Combination of how much light (Aperture) and for how long (Shutter Speed) 1/200th at f/4 = 1/100th at f/8 = 1/50th at f/16

+ or – ExposureAperture priorityShutter priorityFull manual

Metering node

Center weightedSpotMulti-zoneFace detection

Auto Focus

CenterSpotMultizoneFace recognitionManualMacro (close-up)

Image Format

Picture is compressed to save space

Quality: Low High Raw

File Size: 2MB 4MB 20MB

Loss of colorsSharpeningLoss of detail… but faster!

Multiple Shots

Capture unpredictable motionBracketing exposureHigh Dynamic RangeShort movie clips

Sensitivity

ASA or ISO “film speed”Take pictures in low lightIncreased noise (colored speckles)

Flash

Built-in flash can reach 10 feet or soFill flash is a nice effectPlain flash gives stark shadowsRed eye prevention takes timeEarly flash vs. late flash

Zoom

Expressed as 35mm equivalent: 35mm is wide angle 55mm is normal 135mm is short telephoto

Old rule of thumb: handhold 200mm at 1/200th or faster, but stabilization can double that

Digital zoom is just in-camera cropping

Self-timer

Prop the camera on a level surfaceYou have 10 seconds to run around front

and smileCan also be used to start a time exposure.

Filters

Used to be used for color adjustment“Skylight” or “1A” used to protect the lens

if you have threadsPolarizer controls reflections and deepens

sky colorSome cameras have useless built-in black

and white or sepia effects

Special Presets

Scenery – locks focus at infinityPortrait – balances for good skin tonesNight – optimizes for low lightSports – tries for high shutter speedSmile – Waits for smiles!Etc…

Geo Tagging

Camera can record GPS coordinatesSeparate GPS logger can also be used

Mobile Phone Camera

Smartphones have better and better cameras

Good for close-upsFeatures controlled by touch

screenPractice your gripApps available to replace

standard cameraTakes movies too