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Understanding Exposure
by Bryan Peterson

Pantone Huey Monitor Color Correction
Win/Mac

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Learning to See
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by Bryan Peterson

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Figure 2-7.--Computing Gamma.

The values of D

1

, D

2

, log H

1

, and log H

2

are read

Quick method--This method uses a gamma

directly from the graph. The mathematical

gauge (fig. 2-8). The arrow of the gauge is placed on

computation for this method is shown at the top of

the straight-line section of the curve with its base line

parallel to the log-H axis. Gamma is indicated where

2-14

Advanced Photography Course

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