I captured this data this evening.
15x5min @iso800 using my Canon 550D and Nifty 50 lens.
All the individual subs are great, but when I stacked them, DSS ate most of the stars at the bottom.
I'd not made any changes to the settings at all since the last time I used it.
Can any explain what has happened?
Flip top to bottom the images and then stack, then see if the bottom area is still smudged. This could be a hardware failure: do an extensive memory and hardware diagnostic. The personal computers today don't do error checking and correction like the cluster workstations do, so a failure goes undetected unless it causes a problem. Also make sure that one of your images isn't corrupted as that will spoil the stack also.
OK Problem solved. I changed my star detection thresh hold in DSS up to 93% so there weren't as many stars for it to have to count.
Image specs.
canon 550D @ ISO 800 Canon Nifty Fifty F1.8 @ F4.5.
13 x 5min subs.
OK Problem solved. I changed my star detection thresh hold in DSS up to 93% so there weren't as many stars for it to have to count.
Image specs.
canon 550D @ ISO 800 Canon Nifty Fifty F1.8 @ F4.5.
13 x 5min subs.
Phew that was lucky! Something else to keep in mind now when stacking beautful shot too
Damn you DSS, it's doing it again. Talk about touchy settings.
At least I know it can be fixed. But I'm onto my 4th try of restacking. It better be worth it.
When you hit register, go to the Advanced tab and hit the "Compute the number of detected stars" button. Then adjust and re-compute until it finds between 50-100 stars. Those numbers have always worked for me on widefields.