This post was last modified: 2016-03-21, 01:11 by xoda.

I have a day-to-night timelapse, where LRT seems to have a lot of trouble with the exposure. It was shot with a D90 in raw. All of the exposure adjustments I made in camera were 1 stop or below. I edited all the keyframes, and everything still looks normal up to that point.

In previous sunset timelapses I did, there might be little bumps near each exposure change that I can just smooth out with visual deflickr. But with this timelapse, visual deflickr wont cut it.

What can I do to fix it?

Unfortnuately from the screenshots I can't say what might be going wrong. It would have been interesting to see, how the visual luminance curve (the pink one) after rendering the visual previews looks like.

Normally after the holy grail wizard, the biggest jumps should eb gone and you can start deflickering. For your sequence I'd put a deflickerreference area to the top left over the sky. This should do it.

But i cannot know if something else went wrong when editing. So try this, an if it still doesn't work, try redoing the whole sequence (right click on the folder in LRT -> Clear all LRT Editing) and start over. Remember to use the Sync Script to bring the settings from one to the next keyframes, remember not to delete and gradients or add any new ones and remember to not use the "intelligent" tools in Lightroom, like Dehaze, Clarity, Whites, Blacks too much.

Here are some links to consider:
http://forum.lrtimelapse.com/Thread-what...htroom-acr
http://forum.lrtimelapse.com/Thread-how-...ync-script

This post was last modified: 2016-03-23, 12:48 by xoda.

So, my previous attempt (as described in the OP), I tried several rounds of heavy visual deflickering to get rid of the jumps. It sort of worked, but I was left with strange changes in the color of the sky. So I followed your suggestion, deleted the XML files and started over.


To make sure everything’s transparent, I recorded my screen while doing it. Here’s it is:

[Video: https://vimeo.com/160067435]


After editing in LR, I reloaded them in LRTimelapse. This time, even before visual deflickering, there were hardly any jumps at all. Looking good! But there were still a few minor bumps. So I applied 1 round visual deflicker (amount = 10). And then, I rendered the video.


Virtually the same as the previous attempt. Strange changes in the color of the sky. Starting at around the 0:45 mark. At around 0:47, it seems the the entire screen momentarily shifts to the blue.

[Video: https://vimeo.com/160068798]

Here are each of the keyframes as edited in LR:

This post was last modified: 2016-03-23, 12:27 by xoda.

Keyframes 2of3

keyframes 3of3

As you can see in the video above, I made some edits in the graduated filter specifically to affect the sky. However, I dont think this should produce this strange color gyrations in the sky because the edits I've made here are relatively mild and don't include any large changes.

Anyways, I am posting it here just in case.

graduated filter 2of2

Here's a screenshot the visual previews. Only the top left area (the sky) is referenced as per your suggestion

This post was last modified: 2016-03-23, 20:04 by Gunther.

I don't think LRTimelapse is doing anything wrong there. And I assume, you didn't mess up the workflow too. (double check this thread: http://forum.lrtimelapse.com/Thread-what...htroom-acr

This might be the problem explained here:
http://lrtimelapse.com/news/use-the-new-...me-lapses/

When using strong development in Lightroom, especially with tools like Clarity, Dehaze, Whites, Black etc. Lightroom tend to work context sensitive - this means depending on the contrast and other criteria that only adobe knows, the tools will work different on even slightly different images leading to effects like you see them. I think the Whites, that you put to "33" is the problem. Whites is a very sensitive tool in Lightroom. It brings a lot of saturation too and does not work well for timelapse if used to that extent.
I'd suggest doing the sequence again with less editing and less of the mentioned tool. Use the parametric tone curve, it works a bit more linear then whites/blacks. You have to try what brings you to your result.