Category

Glossary

• Glossary

  ISO

  03.10.09 | Permalink | Comments

  In still photography, the sensitivity of the silver halide crystals in the film to light. In digital still photography, the sensitivity of the image sensor to light. Digitally, it’s also known as the exposure index rating (EI).

• Glossary

  Aperture

  02.18.09 | Permalink | Comments

  Aperture is a ratio of the focal length of a camera to the diameter of the iris of the camera. With a wider aperture, which is a lower number, more light will get into the camera. With a more narrow aperture, which is a higher number, the amount of time the camera is taking that [...]

• Glossary

  Sound

  02.05.09 | Permalink | Comments

  When something vibrates and creates a sound it changes the pressure of the medium that surrounds it, creating waves of varying pressure. The medium could be air, water, concrete, jello or just about anything with mass. The waves move through the medium and the compression/decompression is what is heard. The speed at which the medium [...]

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