This thread contains images of a comparison between Sherwin Williams Gray Screen and Winter Mist/Dice 5:1. The Gray Screen panel is on the left in all shots.
Equipment
Mitsubishi HC3000 projector
Toshiba HD-A2 HD-DVD player
Olympus Evolt E-500 Camera
Camera Settings
Camera is set up on a tripod and a remote is used to take the pictures.
ISO 100
Shutter Speed and f-stop are set to automatic
White Balance achieved with a WhiBal card
The room is almost completely dark for all shots. I had the back cans dimmed to about 10% - just barely on.
Some Data
I was originally planning on posting images of the screen captures from HCFR here. That will have to wait until Smokey Joe gives me the A-OK!
Winter Mist/Dice 5:1
RGB
188 190 188
Color Temp 6491
L*ab 76.8 -0.96 1.0
xyY 0.31 0.33 51.2
Sherwin Williams Gray Screen
RGB
199 203 203
Color Temp 6671
L*ab 81.31 -1.42 -0.45
xyY 0.31 0.33 59.0