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Response to Calculating GN with 2 heads

from Alan Gibson (Alan@snibgo.com)
If the units have the same GNs, and are used from exactly the same position, you would multiply the GN by 1.414.

Using them in different positions, only partly overlapping on the model, the concept of GN is pretty useless. This is what flash meters were invented for.

(posted 8810 days ago)

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