How consistent are incident light meter readings?

benjiboy said:

In backlight, you can use "The Duplex Method" as described in Dunn and Wakefield's Exposure Manual(sadly out of print), in which you point the dome at the Sun, note the reading, then from the subject at the camera, and average the two readings, this works in any light, front side or backlight.

Metering Techniques: How to use an Incident Light Meter for backlit scenes with the Duplex Method: Page 2

crawfordphotoschool.com

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