The effect is minor in many situations, other times as you convert to B&W or work with more saturation or clarity, the streaking shows more.
Only on Shifts, and greater than 5mm or so. At least on the shots where I saw it.
It was clear to me, that this would show up in large print, so I asked to have a case opened to see if the problem was just the back I was using, the answer came back no.
I have not shifted my IQ100 to 15mm yet, but have seen the problem in a few test shots, mentioned in an earlier post. Before I ordered the 100, I clarified with my dealer as to if this issue was still happening, and yes it was.
Now it's very possible that Sony, Phase One, or both have altered the chip fab, controller, firmware (that can't be added externally) to fix this issue and if so that is great for new orders. It was very clear that the problem carried over to the IQ100 that Alpa tested with, I made a point then to mention this. That shot is long gone I no longer have it.
Never said it's a show stopper, never will, but for 45K, it should not be there. And since it was well documented in issues with the 50MP chip, I was surprised and rather disappointed to see that the same issue carried over to the 100MP (at least the one I have). Since the effect is slight, it's also just that much harder to get rid of. I made my decision to purchase the 100, knowing it was there and also with a feeling that Phase would not fix it as it was never addressed with the 50MP chip. The other benefits of CMOS over CCD (IQ260) were enough for me to justify the move.
I am also not trying to bash anyone, any company, any dealer. Just want to point out that issue is there at least on some backs and depending on your photographic style, you may see it if you use the tech camera and shift a lot, which I did.
Attachment is from upper left corner of a 15mm shift HR-W40mm
Paul C