First Assignment Notes ~ 9/23/2015

Exposure Controls: 

Exposure

• Duration of time that the shutter is open (film is exposed to light/light enters the camera).
• The actual taking of the photo 1.
• Shutter Speed + Aperture + film ISO/ASA + Lighting = (determines)
• Unbalanced light meter (incorrect exposure)
• Overexposed vs. Underexposed

ISO/ASA

• The measure of a photographic film's sensitivity to light.
• Higher numbers (1600) are for darker places, whereas lower numbers (100) are for photos taken in brighter sunlight.

Shutter Speed

• How fast or slow the shutter opens.
• The slower the shutter speed, the more light enters the camera.
• Shutter speed controls how your camera "sees" motion.
• The shutter speed numbers are actually fractions of a second. (represented by whole numbers)
• Ex: 1000 = 1/1000 sec.
• 100 is faster than 2
• 60 (1/60 sec.) is the slowest shutter speed useable while holding the camera.
• The time the shutter is open is either double or half.

Shutter Speed and Motion

• Fast shutter speed (1/1500 or 1/1000) will freeze movement.
• Camera shake DOES NOT = motion

Aperture

• The opening in the lens of the camera.
• Size determines the amount of light let in through the lens.
• Aperture controls depth of field (What's in focus and what's not).
• Depth of Field
• Great:
• Small aperture openings = a great depth of field (everything is in focus).
• A large # (f/16, f/22) = small opening.
• Shallow:
• Large aperture opening = a SHALLOW depth of field (only the main subject is in focus)
• A small # (f/2, f/1.8) = a large opening.
• Law of Reciprocity
• One exposure control can compensate for another.
• You are balancing time (shutter speed) vs. quantity of light (aperture).
• Aperture and Shutter Speed
• When you change your aperture, you must check and change your shutter speed.
• Your light meter will tell you if you are correct.

First Assignment: Frozen Motion

• 6 photos using fast shutter speeds (to freeze motion).
• Shutter speed to use: 250 or faster.

First Assignment: Blurred Motion

• 6 photos using slow shutter speeds (to blur motion)
• Shutter Speed to use: 60 or slower. (60, 30, 15, 8, 4, 2)