contrast | wolfcrow - Part 2
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MEM Driving Miss Digital

Notes by Dr. Optoglass: Eye Geometry

Topics Covered: The Emsley model of the Eye The Focal Length the Eye The Total Retinal Area of the Eye The health of the eye seems to demand a horizon. We are never tired, so long as we can see far enough – Ralph Waldo Emerson The problem with drawing the geometry of the human […]

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MEM Driving Miss Digital

Notes by Dr. Optoglass: The Human Eye – Part III

Topics Covered: How the Cones produce color The visible spectrum Defining Color Space The CIE XYZ 1931 color space It is the eye of other people that ruin us. If I were blind I would want, neither fine clothes, fine houses or fine furniture – Benjamin Franklin Humans normally have three kinds of cones. They […]

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MEM Driving Miss Digital

Notes by Dr. Optoglass: The Human Eye – Part II

Topics Covered: The Retina, Macula and the Fovea About Rods and Cones The eye of a human being is a microscope, which makes the world seem bigger than it really is – Khalil Gibran Light, after having passed through the vitreous body hits the Retina, which covers the inner lining of the eye. ‘Retina’ comes […]

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MEM Driving Miss Digital

Notes by Dr. Optoglass: The Human Eye – Part I

Topics Covered: A Diagram of the Human Eye for Videographers and Photographers The Pupil, Iris and the Lens The Vitreous Body Every closed eye is not sleeping, and every open eye is not seeing – Bill Cosby Start by knowing this: The human eye is more complex than any camera, and possibly more complex than […]

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MEM Driving Miss Digital

At the Edge of Acutance

Topics Covered: Acutance or Edge contrast Local contrast vs Global contrast People see only what they are prepared to see – Ralph Waldo Emerson “Yes, the eye can be cheated,” sighed Dr. Optoglass. “You’ll find visual tricks everywhere, so I don’t have to convince you of that. Sometimes the eye makes something look worse than […]

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MEM Driving Miss Digital

The World of Contrasts

Topics Covered: What is Contrast? Contrast Ratio and Dynamic Range Contrast is what makes photography interesting – Conrad Hall “You like boundaries and edges, don’t you?” quizzed Dr. Optoglass. He can see through me, thought Bob. “They are interesting, I guess.” “More than that, my dear boy. They are absolutely necessary. Did you wonder why […]