Robert KosaraA little time lapse experiment with star trails. There's also a couple of bonus boats, and the blob you see at the beginning is the setting moon.
Carlos Scheidegger@eagereyes That's very cool. What are the stationary dots, I wonder? Stuck CCD cells?
@scheidegger Other than the North Star? 🙃 I'm not seeing any dots that aren't dust on my screen, but maybe it's just too bright in this room.
Certainly possible that there are stuck pixels, this is just an action camera, and I'm actually amazed that it's doing this well (30s exposures at 800 ISO).
@eagereyes lol no not the north star :p Stuff like this.
They're def very faint, I wonder if it could even be dust specks or something. And I agree it looks amazing!
@scheidegger wow that is very faint… doesn't really look like a hot pixel, though maybe it gets smeared by the compression or processing. Good catch, now I'm going to be super paranoid about tiny specks in my shots… 😬
@eagereyes ah, very good. compression smearing individual frames explains why it shimmers around. So I bet that if you average the raw output it’s a tighter speck that you might be able to catch with hot pixel filters on the output
@scheidegger The complication here is that these action cams always stabilize the image, and it was pretty windy overnight. So if it's on the lens, it'll seem to move around, though it'll still smooth out with some averaging I guess.
Next time, I'll also record a dark slide and see if that helps.