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+--- Thread: More Flicker, or is this something else? (/Thread-more-flicker-or-is-this-something-else)
More Flicker, or is this something else? - Not A Speck Of Cereal - 2020-08-16
Hey there,
I have an issue with a time-lapse. I did what I thought was ample de-flicker, but still have a fluttering at the horizon of the mountain (see resulting video link below). I've done Milky Way TL's before and don't remember having this issue. I wonder if someone can offer any suggestions to try. I'm going to re-shoot this same location in a day or two.
Here are some particulars
- LiveView silent-shutter mode (D850, all electronic)
- Exposure: 13s, f2.8, ISO1600
- Interval: 15s (so a full 2-seconds to write.
- Processed with LRTimelapse with plenty of De-Flicker processing (I don't remember how many passes I did, but it was at least 2, but probably not more than 4)
- LRTimelapse shows fractional differences in shutter-speeds so I checked that it and the grid reports exact same exposures for each frame.
As per the subject line, is this even standard flicker?
Any tips appreciated.
Should I do mechanical shutter?
Perhaps I just need more deflicker steps?
Chris
PS: I realize it's not a great time-lapse in other respects (I didn't expose the milky-way very well). I'm going to re-try tomorrow night. So I would like to get this figured out.
https://www.youtube.com/watch?v=X5I5ao4aTwM&feature=youtu.be&fbclid=IwAR3eG5NPX0lzSDus2imdNCAZUTVfX70_jP5rtxL9kGeEhJ6R5YeluaC6jK4
RE: More Flicker, or is this something else? - Gunther - 2020-08-17
This is most likely contrast ficker introduced by Lightroom due to too heavy editing with the non linear tools in the basic panel (dehaze, clarity, blacks, whites, highlights, shadows).
You should use those tools only very carefully, especially on such images with heavy editing.
Use the tonecurve instead. You can edit the point curve on the first keyframes (this will stay constant over all keyframes) and modify the parametric tonecurve along the keyframes if needed.
There is an faq explaining the non-linear behavior of some tools in LR: https://lrtimelapse.com/news/use-the-new-dehaze-with-care-on-time-lapses/
Also we already discussed this issues in the forum many times, for example here:
https://forum.lrtimelapse.com/Thread-major-flicker-issues-with-milky-way-timelapse
In my opinion the editing doesn't look right also - when there is no moon, the sky shouldn't be blue, it's rather a neutral color.
RE: More Flicker, or is this something else? - cringeguy - 2020-08-20
Hi. Try the DaVinci Resolve Defilcker (Open FX > Deflicker). I find it solving residual deflicker after LR Timelapse.
In my usual workflow, LR Timelapse is enough.
RE: More Flicker, or is this something else? - Not A Speck Of Cereal - 2020-08-21
Thanks Cringeguy, I use Resolve, so I'll look up the OpenFX item.
I think Gunther hit the nail on the head with the root problem, using a lot of the LR non-linear adjustments. My frames were underexposed to start with, so that kicked off a lot of adjustment compensation. I hope to go up this weekend and re-shoot the thing. But I'll also keep Resolve in mind in case that doesn't happen.
Cheers, Chris