After 10-1/2 weeks the new APtus 75 arrived.
I spent the past 2 hours testing it with Schneider Digitar 24, 35 and 47mm lenses. I used 5, 10, 15, 20 and 25mm rise/shift.
I distorted the files in PSCS2 using curves and levels.....
Bottom line, the NEW Aptus 75 appears to be (bad words deleted ;-)) perfect!
No centerfold, no color shift (unlike the Phase back I had), absolutely perfect.