Here's a little something for any of you wondering if the (blue hued) Z2 is just way off calibration or not.
I actually owned a Z2 before I decided to move to a Z4. I had read reviews that the SDE I could clearly see on the Z2 was almost nonexistent on the Z4. The review should still be up on ProjectorCentral.com. It also mentioned the great difference in contrast between the two machines. It was enough for me to jump at a great deal on a Z4 online.
After I purchased the Z4, I set both of the projectors to the same settings, and used the same screen, same mount, etc... to compare them. This is what I saw.
for the Z2 (above), and
for the Z4 (above).
It is very true that the Z2 has a "washed out" blueish hue to its images when put next to a newer machine. Both of the machines had done about the same with resolution of course, but the blacks seemed to be much better on the Z4. I hadn't owned the Z2 for too long, and the lamp didn't have a great deal of hours upon it. I was surprised at the way the colors jumped off of the screen much better on the Z4 compared to the Z2.
Now the only question that I am left with is - how much of a difference is there between the Z4 (or Z5) versus the new Epson.
(On a side note, I did not have an HD version of the calibration disc at the time these were taken AND both of these images are NOT pulled from an HD player. They are being played on a Sony upconverting player - as I didn't own any HD players when I bought the Z4. I just thought that you might like to see some of my older files for the comparison. I would give you a new comparison, but I sold the Z2 last year.)