An astro buddy of mine Allen, along with his wife Cindy, took a day trip to my house to pick up his APM 152ED doublet he sent to me for testing a few months back. He brought along his new Astro-Tech AT152EDT, F8 triplet for DPAC testing.
And we were so busy, I forgot to take pictures of it but it looks just like it does in the ad pictures. This is a very robust scope with a nice smooth focuser, and a removable section for imaging which also makes it "bino-friendly". Checking the focuser collimation with a 152mm mask on the objective showed the laser going right through the center hole, even when the focuser was racked in and out. Allen said the view through his Cheshire shows all of the reflections from the aft faces of the three elements lined up on top of each other. It's a bit of a beast, but well made. My TEC 160ED weighs perhaps 2-3 pounds less.
So, how did it do?
Quite well in DPAC. Keeping a single Ronchi line centered as we swept though focus showed not clocking of the lines at all indicating, at least on the bench, no visible astigmatism.
First, full aperture color montages, with the inside of focus images on top, the outside of focus images on the bottom.