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Feature Request: Run StackCheck again on this stack

Feature Request

I really like the way StackCheck currently gives a suggestion straight after a stack has finished. It is very useful having the result immediately.

What I would like to add is a “Run StackCheck again on this stack” option that the user can choose manually at a later time.

For example, if I save a stack as a DNG and come back to it later, it would be useful to be able to run StackCheck on that saved stack again. It could also be useful after making changes to a stack and wanting StackCheck to take another look.

I would keep the current automatic StackCheck after stacking, but have this as an additional manual option for later.

Posted by [email protected] ·
Status: Completed2 comments

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Comments2

  • Ryan Cush

    Team•

    Sep 6

    Hi @[email protected] - thanks for posting this one, and I'm really glad StackCheck has been useful to you.

    Good news: most of what you're describing already works, as of the update from a couple of days ago (2026.09.04). If you open a saved stack, StackCheck takes another look at it automatically and shows the same amber notice with the Restack button. Selecting the file in the Library does it too. So you can come back to a DNG days later and get the suggestion without doing anything special.

    Better still, it isn't limited to stacks you make from now on. StackCheck reads measurements that have been saved inside your DNGs since late June, so your older stacks work too. Three things have to be true: it needs to be a Developed DNG rather than a JPEG or a Raw DNG, the original frames need to still be where they were when you stacked, and there need to be at least 4 of them. (One small caveat on older files. The newest check, the one that spots frames lit differently from their neighbours, needs something that only started being saved this week. Everything else works.)

    One thing to note: running it again after you've made changes to a stack would hand back the identical answer every time. StackCheck only looks at what happened during the stacking itself: which frames were sharp where, how far each one moved, how bright each one was. Adjustments, crops and Retouch don't change any of that, so there's nothing new for it to find.

    What genuinely doesn't exist yet is a manual "run it again" command, and there are two places you'd want one. If you close the notice with the X and then want it back, or if you have StackCheck switched off and want to check just one stack without turning it on. For now, closing and reopening the file brings the notice back. I've written the proper version up as a to-do.

    Would you try opening one of your older DNG stacks and let me know whether the notice appears? I'd be curious whether it finds anything on the ones you were already happy with.

    Thanks for taking the time to write this up, and please keep the feedback coming!

    • [email protected]

      •

      Sep 7

      Hi Ryan,

      I tried the two saved DNGs as you suggested. The older one from 18th August brought the StackCheck notice back, and I also tried one from yesterday, 6th September, which brought the notice back too. The newer one suggested that frames 17 and 24 may be hurting the stack.

      So it looks like the new behaviour is working on both older and recent DNGs. 😊

      I think I now understand where the manual “Run StackCheck again on this stack” would be useful. I really like the automatic check when a stack finishes, and I like that it comes back when you reopen a saved DNG.

      I think the manual option would be especially useful if StackCheck is switched off.

      It would also be useful if I accidentally closed the notice with the X and wanted to bring it back without closing and reopening the stack.

      Thanks for explaining it all — it makes much more sense now!

      Best wishes,
      Sue