question about grey market PGR cameras

[Doodles23 (Dave Bleser)]

I will confess here and now that I purchased a Dragonfly2 camera from an ebay vendor for $275.00. The camera has functioned nominally but I have noticed that the camera has a bunch of strange flashing pixels as well as a non-uniform field when the output is fully stretched. With my DMK the fully stretched histogram output is just a pile of white noise but there is no gradient or uneveness to the hash. Is this to be expected with "grey market" cameras?

[bird (Anthony Wesley)]

Dave, not sure about that, it's possible that the ccd has changed a little in response over time. You could consider making a flat-field image to correct it, I think registax has support for loading a flat-field image.

cheers, Bird