DP Merrill PDR separated by plane
There has been some curiosity about this subject so here are the numbers I measured:
Red: 8.82 (0.08)
Blue: 8.85 (0.22)
The numbers in parentheses are the standard deviations of the measurements.
As you can see, the Blue (top) plane is more variable than the other two.
Bill (visit me at http://home.comcast.net/~NikonD70/ )