[kinetic (Steve)]

Hi all,

I had a go at Eta Car last night before the moon came up.
Not a serious attempt, but the seeing seemed to be fairly good.

I get these dark frame artifacts that seem to survive the
dark frame subtraction process, and only show up when doing
extreme histogram adjustments.
That's probably to be expected though ( my dark frames can never
be an exact exposure equivalent of the lights, at least in my DSI
because it is uncooled).
But having said that, most are gone after the subtraction, but
this bugger seems to get through.
When I looked at my dark frames, the culprit is a pixel that turns
on and off at random.

Is there a technique that deals with these pixels?....

Or is it easier to deal with it via a post processing 'touch up'?

Does anyone have this happen?

thanks in advance,

Steve