Like quite a few people on this forum, I'm struggling with my grey card shots. My first attempts with a D2x camera and a 5omm F1.4 lens(100ISO)were taken outside. Although for much of the time-it was overcast-the light did change quite a bit.
My "correct exposure" readings(using the info palette) for a shot taken at F8 @ 1/60th were as follows:
R88 G91 B98. I tried taking readings from different parts of the image and these varied slighly from those given. Anyway-these readings are nowhere close to the recommended 128 in each channel.
What else can I do? Am thinking of re-taken the shots indoors at night in my kitchen. No doubt, I'll have to change the White Balance to Fluorescent as I'll be shooting under these lightening conditions.