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Mastering Exposure and the Zone System for Digital Photographers by Lee Varis

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Shooting the Test Target

Sekonic now offers two different targets—the original target consists of seven patches arranged in 1/6th stop decreasing reflectance. The patch set is surrounded by an 18% reflectance gray field with white and black bars above and below respectively. This target requires 11 exposures that include a standard exposure metered from the 18% tone and 5 shots in successive 1EV steps above and below the metered exposure. The new target consists of a central 18% gray patch that is surrounded by 25 patches arranged in 1/6th stop values that are successively brighter and darker. This target only requires three exposures—a standard exposure of the central 18% tone shot at the metered exposure, one shot that is –3EV below metered ...

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