I just purchased a like new Ec-D screen for my 1d2 from B&H. This is the grid screen that helps for horizon shots and stuff. At first, I was thrown off because it doesn't have the oval focusing area on it. Instead, it has a bulls-eye to it that leads to the crosshairs of the center point. It's sort of like looking through a sniper's scope
.
When you have 45 AF points, it's really nice to have the screen show you exactly where center is.

