Dave, I'm working on the light curve bit now, not having done this before I'm not entirely sure what the right thing is to do here... I was thinking of simply accumulating all the light in each frame and using that as the "value" for each frame. Plotting that will clearly show the dropoff during the event, and the relative values between frames should be ok. I have no idea what sort of "absolute" values I could produce as nothing is calibrated.
cheers, Bird
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