<p>Wow. There's some bitter folks up in this website. Try the decaf and get out of your house a little more. However, thank you <a href="/photodb/user?user_id=361342">Andrew Rodney</a> and <a href="/photodb/user?user_id=17942">Ellis Vener</a> for being professional and educated as to understand my question and give a straight answer to a fellow professional. I look forward to learning from you. For you guys, I'll elaborate.</p>
<p>As I mentioned, I'm attempting to capture a color. A prescribed, solid swatch of color at a distance of about 20 feet printed on a prescribed substrate by a prescribed printer. I want to capture this color swatch on my Canon 5d2 with a 70-200 2.8-L, and have that swatch travel from capture to client viewing on my monitor and have "virtually" very little shift in color value and hue. I want to (A) shoot the first sample on a clear day with full sunshine, and then (B) shoot the same sample, same location, same camera/lens, on a cloudy day.</p>
<p>When viewed on my monitor (assuming it is calibrated correctly for the environment that it sits), the two swatches can be seen side by side and the client can view them and understand how the sun and the lack of sun, in the environment that it physically sat during the moment of the shoot, how it affects that particular color, used on that particular substrate and printed from that particular printer.</p>
<p>Basically, the only changing variable from one image to the other image is the effect of the sun behind the clouds, how the environment changes when that happens and what effect that will have on that particular color on that particular substrate.</p>
<p>All of this is born from attempting to arrive at a single, "chosen" color on an established substrate that will later be used in a shoot, taken by a 5d2/70-200, 2.8-L, in a sunny and overcast-ish day by another photographer. Then I will receive that photo (raw), know exactly what color is used in the shoot and I will know, within very good reason, how the light/modified sunlight affects that color on my monitor.</p>