reyaldp,
I see them in the DNG too, and it looks similar in a
CHDK CRW with and without badpixel.bin present.
It's like a dark line 10 pixels thick and another one
parallel to it about 5 pixels which somehow blends with the
picture.
A 15 pixels thick frame that needs to be trimmed 😀
Could it be a sensor dimensions error in the active area
defined in camera.h or somewhere in the source code for
the
A590IS? Is there any way to trim the borders a bit there? About 15 pixels?
Regarding the raw converter I use dcraw.exe, but you can
see the problem in IrfanView, FastStone and UFraw.