27th Feb 2012

Written Notes

Earliest References:

• 330bc- Aristotle
• 1267- Roger Bacon
• 1558- Giovanni Battista Della Porta

Pin Hole Camera: Is the simplest type of camera.

David Hockney- Secret Knowledge

1700's - 1800's: The light sensitive

Camera Basics:

• Light-tight body
• Lens to focus image
• Means of capturing the image
• Aperture through which the light passes

Aperture:

• Hole or opening
• Different sized apertures allow exposure to be varied
• When light is low use large aperture
• When light is high use low aperture

Shutter:

• Mechanism to begin and end the exposure / capture

Shutter Types:

• Focal Plane: Operates in front of the film at the focal plane
• BTL or Leaf: Operates inside the lens much like a diaphragm

Meanings:

• Diaphragm = Mechanism
• Aperture = Hole - opening
• F stop = Particular sized opening
• Large f # = Small aperture which = less light passed
• Small f # = Large aperture which = more light passed
• Shutter Release = The " Magic" button
• Exposure = Time * Intensity
• Time = Shutter speed
• Intensity = Aperture