The Relative Aperture or F -Stop ( F ) for a Camera

question 147

Short Answer

The relative aperture or f -stop ( f ) for a camera lens is inversely proportional to the diameter of the aperture ( d ). An f -stop of 4 corresponds to an aperture diameter of 20 millimeters for the lens on an automatic camera. What is the f -stop of this camera when the aperture diameter is 10 millimeters?

Understand the structure and assumptions behind intelligence testing, including historical applications and implications.

Identify methods used in psychological research and the interpretation of study results.

Recognize key factors in cognitive development, including metacognition, memory, and intelligence theory.

Understand the concept of Intelligence Quotient (IQ) and its calculation.

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Definitions:

Early Christian

Pertains to the period and art forms associated with Christians and the Christian Church from its beginning until the end of the Roman Empire.

Theotokos

Greek, “she who bore God.” The Virgin Mary, the mother of Jesus.

Hiberno-Saxon

Referring to the art and culture that emerged in the British Isles during the early medieval period, characterized by the fusion of Anglo-Saxon and Irish traditions.

Iconographical Program

A systematic method of depicting subjects in works of art that involves a set of conventional symbols, allowing the viewer to understand its meanings and messages.