ARTS 210 Lecture Notes - Lecture 2: Motion Blur, Raw Image Format, International Organization For Standardization
Document Summary
If action is coming towards you, can stop action (keep background clear) compared to where if the action were coming by you. Move camera as action doer is moving to keep person in same spot, makes background blurry. Anything slower than 1/30th of a second, want to use a tripod. 1, 2, 4, 8 ,15, 30so on. Changing to one smaller number lets in half as much light. Controls length of time light strikes film. High shutter speed helps in any fast action. Slow shutter speed may be intentionally used to create a blurred effect. Interval from 30th to 60th is a stop --means i"ve doubled or halved. Intensity is controlled by the f-stop--a diagram that lets more or less light in. F=focal length of the lens divided by. When the object is at infinity the distance from the optical center to the image.