Well, for all the discussion about "banding" which in each case I've seen has really been about vertically patterned noise - I found a real band.
I noticed it when playing around with some longish night shots (longish being ~10-30 seconds). It occurs in the same place each time regardless of lens, iso, or noise reduction setting. I haven't seen it in any "real" pictures yet, but I do shoot abstracts so any experiment can become a "real" picture for me.
Attached is a full shot and a 100% crop (that's the moon, btw). This picture was pushed to make that big fat stripe as apparent as possible, but it has annoyingly reared it's head in lesser circumstances.
I emailed "userassistance@pentax.com" (it was on the little paper in the box) a couple dng files to see what they have to say about it. If anyone knows a better way to get support from pentax please let me know.
Last edited by Paul_C; 12-06-2006 at 07:23 AM.