MAD Photo Test 1

DOF

And there are more…

f/22, f/32

f/45, f/64, f/90, f/128, f/180, f/256

You are responsible to learn these…

Depth of Field: The distance between the nearest and farthest objects in a scene that appear acceptably sharp

1/1000 s 1/500 s 1/250 s 1/125 s 1/60 s 1/30 s 1/15 s 1/8 s 1/4 s 1/2 s 1 s Bulb

And there are more…

1/2000 s, 1/4000 s, 1/8000 s

• Definition: the sensitivity to light of the image sensor (also applies to film)

the lower the number the less sensitive your camera is to light the higher the number the more sensitive your camera is to light

Semi-Standard ISO’s: 100,125,160,200,250,320,400,500,640,800,1000,1250,1600, 2000,2500,3200

Between 6 and 204,800

• Better quality with less noise*/grain • Less sensitive to light • Could have longer exposure times

(longer shutter speed) *Noise Definition: the occurrence of color dots or specks where there should be none

• Lower quality with higher grain/noise

• More sensitive to light • Shorter exposure times (shorter

shutter speed)

Exposure

The amount of light allowed to fall on a photographic medium during the process of taking a photograph

There is correct exposure and incorrect exposure…

• Joint Photographic Experts Group • Lossy Compression Format (Bad) • Usually 10:1 compression • Smaller file size

• Raw data directly from the sensor • No compression • No loss of data • Huge file size

• Tagged Image File Format • Lossless Compression Format • Larger File Sizes • Output option in Photoshop

• Some cameras can shoot TIFF, but not many

• Photoshop Document • Holds all editing data

• Layers, masks, etc.

• No compression – based off of TIFF • Very large file size • Only readable by Photoshop

WE DON’T WANT COMPRESSION

SHOOT RAW

SAVE as PSD

OUTPUT to TIFF

• Focal length • A measure of how strongly the system converges or

diverges light • Unit of measurement: millimeters (mm)

• Most (not all) digital cameras have an “equivalent focal length” because the sensor size is smaller than a 35mm, usually 1.6 times (Canon) smaller or 1.5 times (Nikon) or 2.0 times (Olympus)

• Aperture • Fixed or constant aperture

• Ex: f/2.8, • Non-fixed or constant aperture

• Ex: f/3.5-f/5.6

Terms you should understand

• Prime lens: fixed focal length lens (usually has fixed or constant aperture) • Ex: 28mm, 600mm

• Zoom Lens: variable focal length

lens • Ex: 24mm-70mm

More Terms…

• Generally from • 4.5mm to 35mm

• Distorts the image

• Usually sharp in the middle, and very distorted on the edges

Wide Angle

• Usually 40mm-60mm • 50mm is the standard • Creates image that seems natural

to human eye • Very little distortion

Normal Lenses

• Usually from 70mm-300mm • Super telephoto lenses from

300mm – 1200mm • Creates compression of the image

plane (compresses space) • No distortion

Telephoto Lenses

• Definition: • the act of combining graphic elements to

create a visual structure

• Keep it simple, stupid…

• Lines that lead the viewer’s eye through the photograph

• Primary Hues • Painters Primaries

• Red, Yellow, Blue • Primaries of Reflected Light

• Photographers Primaries • Red, Green, Blue • Primaries of

• Transmitted Light

• Secondary Hues

• Complementary Colors

• Green --> Red

• Violet --> Yellow

• Orange --> Blue

• The variations in a hue’s strength or fullness

• Fully saturated color’s are pure, not diluted or reduced

• To de-saturate a hue is to mix it with white, black, grey or its complementary hue

• Hues lightness or darkness

• Easily adjusted by a photographer, changing exposure

• Slight underexposure creates more vivid colors

• Red, yellow and orange advance toward the viewer

• Blue, green, violet recede away from the viewer