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O, thanks, I'll try it!

Edit: oh, no, I tried it - and I changed my mind, I prefer the interface of MLV App)))) - I'd better smash my 7D against the wall
Thanks everyone for your attention and advice!

Danne,
Yes, I am on mac... but to tell the truth, I didn't get in what "main menu" should I select (m)? In MLV App? Don't see any((
Could you, please, explain!

bouncyball,
The sky in my shots is always absolutely clean without any stripes, the vertical stripes are ONLY in the darkest shadows after I pull them out increasing the exposure in post.

Danne,

Thanks,
I am just trying now to reduce banding with dark frame subtraction - but not very successfully... I can't see significant differences.

bouncyball

Did exactly as you wrote:
here is a short piece of mlv file with banding
https://drive.google.com/open?id=1OO7KM1SLF8_FMY7ztTIW-86qyk3OVsii

here is a 150 frame "dark" mlv with cap on (not averaged, just shot)
https://drive.google.com/open?id=1V_rclSwp4MCbrB54ptwjyoYhZYkQgY92

I wonder: should I increase the brightness of the dark video to see the noise visually before exporting as average dark frame or leave as it is absolutely dark?

masc,
sure I tried "Vertical Stripes" - Normal and Force - NO changes at all. It doesn't work for my kind of stripes.
The only setting, that kills the noise banding is "PATTERN NOISE", but it makes it's own "stripes"/

Bouncyball, thank you very much for the explanation about the dark frame - I couldn't imagine such a workflow!!!))
That's great, I will test now, how it works with my footage more precisely! But I think, dark frame works best at high ISO, while my banding is most ugly at 100-200 ISO, but I'll try different settings and report.

I've just experimented with "PATTERN NOISE" button - it does a great job, removing vertical banding pattern of 7D, but in the areas of the frame with high contrast it causes strange artifacts.

That's how my banding noise looks originally




Another example below - where banding is not so visible, but it helps to see the effect of the "PATTERN NOISE" button BEFORE-AFTER:

PATTERN NOISE - OFF




PATTERN NOISE - ON - banding GONE, but new grey stripes appear.

Hi, guys!

Just downloaded the new version of the App: looks great, so many new features, - thanks a lot for updating the great application!
My question: I use 7D and the vertical banding noise in the shadows is driving me mad...(((
I tried to fix it with the "pattern noise" function in MLV App. It changed the view of noise a little, it became more pleasant, but the new ugly artifacts appeared, making the footage unusable.
Also tried to use dark frame subtraction, loaded the .MLV file shot with the cap on the lens - no visible changes at all.
Other options in the "RAW correction" tab don't help with banding noise either.

Question 1: Can anyone give me an advice how to fix 7D BANDING, using the App?
And  2: How should I use Dark frame subtraction correctly - where to read about it?? - should it be a still image or video and how to guess it works or not?
Thanks!