If I use a red filter to darken green foliage. I know I have to open up 2 stops for more exposure.
But if my foliage metered unfiltered EV 7-9, what EVs should I consider it when filtered? Is the density difference the same as the increased exposure requirement?
Assume that I would place EV7 on Zone IV without filtration.
I still want texture in the foliage so would not want to place it lower than zone III along with other shadow details.
I might use this to darken foliage across a river so the white water and midtone rocks stand out more.
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