Another Way to Fix the Green Tint
If your camera does not have a Manual White Balance feature, you will find the meter can still help you correct the green tint. Instead of entering a value in the camera, you can simply use a magenta filter. The Illuminati App’s Color Temp Tab display shows you how.
If you look closely, you can see that there are three dots in the color graph. One is the meter’s measurement of the light itself – in this case the one on the top. Notice that the reading is slightly green – i.e. it is above the “neutral” horizontal line. There are two other dots: one is marked 3313, and the other is marked 3314.
If you are familiar with the Roscolux gel filter library, you will recognize these as magenta filters for removing a green tint. Knowing there was a green tint to the lighting, we pre-selected the filters in the Illuminati Meter App, which also shows you the effect of applying these filters. The “3314 1/4 Minus Green” filter is the right choice for this condition – you can see it is plotted right on the neutral line in the graph.
Just put the filter over your lens when you capture your images. BTW – both of these filters come in the Rosco Color Correction Kit, a very handy set of filters for many lighting conditions, available at many photo retailers, and not terribly expensive either. The folks at Lee probably have a similar set.