CS 39J
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Schedule & Notes
> Session 8 Detailed Notes
Computer Science 39J
Friday, April 11
th
, 2008
Night photography
It is hard to meter light
Exposure
EV - 2, EC ? 2, EV ± 0
The camera makes an assumption of a neutral medium ? film
Two ways to measure light
Incident
Light
:
light metering of how much light is falling on the subject
Reflected
Light
:
Light that goes into the camera
Metering
Meter off of a grey wall or a neutral place for the exposure to be ?normal?.
The camera doesn?t know its dark so it adds more light
White balance card = neutral
Lamp light isn?t exactly white, it is yellowish. White balance cards correct the color-cast
White
White is bright grey, the absence of any colorfulness.
White, grey, black = all brightness factors
The brightest things look white when placed among darker things
Time lapse photography
No movement, try dusk
Lens babies
Lenses where you can select the plane of sharp focus
Next assignment
Dusk photos
Little light left