Originally posted by 672 we all notice our sensor defects at 1600 first. then one day its in 800 and then all of a sudden its in iso 200. per adams advice , get a new sensor or camera under warranty as soon as possible...i did and i am much happier.
I had my own camera on repair and the one I got to use from Pentax had the same problem. But it was noticeable at all isos. Of course you had to look at the image much more carefully at low isos to notice it. I found that If you take a image that is blurred of a single colored wall you can find it much easier.
After I while my own camera was changed to a new one (warranty) and when I came home I noticed that the camera was used and had the same line on the sensor as the camera I borrowed. Took it back and was promised a new one. Got my second new camera and found that it was also used with over 10.000 shutter counts more than my had and marks all over the body. The marks had been covered with a permanent marker... Called my lawyer and he contacted pentax.
Finally got a new one that works. It all took about 10 weeks. Even if I love the camera and the way it works and still tell everyone to buy one if they ask me, my final thoughts about the service was bad. That they try to fool you with a camera that costs so much. I know how good the Hasselblad service is. I am not going back to Canon or Nikon but made me think... what if this shit happens after my warranty ends?!?