I bought mine in full knowledge of the dust issue. I only inspected for dust around frame 500 and found some dust. Perhaps more than some. It was easily cleaned. Funny thing, though, of those ~500 frames the dust showed up in only one short sequence. I won't say those images were ruined because the dust was easily fixed. For me, the dust is next to a non-issue. Otherwise, this camera is simply the most competent piece of kit I've ever held in my hands.