Mind posting your calculations here? I'm sure we could all do them, but it might help people for comparison's sake.
So the test is simple, at least for those of us with 15" MBP's. 🙂 We just need to sit as far back from our MBP as we would from an iMac on our desk, and see how it feels!
I'll put the formulas and then just the answers.
😛 It was rough as I was using Excel so bear with me on all the steps.
For MBP
Total Pixels = 1440x900 = 1296000
Diagonal Length = 15.4in
Ratio = 1440/900 = 1.6
Ratio^2 = 2.56 (Reason is this Y^2 + X^2 = 15.4^2, and X = Ratio * Y So, X^2 = Ratio^2 * Y^2)
Now I know Y^2 + 2.56 * Y^2 = 15.4^2 which equals 3.56 * Y^2
SO... Y = SQRT(15.4^2/(1 + Ratio^2)) = 8.16in
Thus X = Y * Ratio = 13.06in
So... Area = 106.59in^2
Now Pixel Density is Px/in^2 which is 1296000/106.59 = 12158.88 for the MBP
9690.74 for the 23" Cinema
11834.29 for the 27" iMac
This is what I was expecting as I own a 15.4" MBP and when I saw the 27" iMac it all looked about the same size.
😀
EDIT:
And just for fun, this is how far we've come
😛 My old 17" 800x600... 3460.21 pixel density.
😀 haha