I need some advice regarding white balance adjustment.
I was using a gray card when shooting a series of photos in a forest, because I found the light a bit tricky there. The plan was to set the white balance of the raw photos later in post processing, but the problem is that the color of the gray card appears uneven.
Depending on which spot I measure I get anything between 5900K and 7000K, with very different results on the overall picture obviously. When I shot the card, I defocused the lens to get an even color, and then applied color noise reduction all the way in Lightroom, but I still can't get a clear reading. Anyone have experience in how to do it?