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+--- Thread: Shaky zoom-in ? Any clues ? (/Thread-shaky-zoom-in-any-clues)
Shaky zoom-in ? Any clues ? - bilgebay - 2014-03-03
Hi everyone,
Yesterday, I shot some RAW videos with my 6D camera and 15mm Fisheye lens. Magic Lantern firmware is loaded on this camera. Instead of actually shooting each frame, I am recording a movie sequence then extracting the frames from it to construct my time lapse. This saves the shutter life as I only use the shutter once per movie.
After this lengthy introduction, let me share my problem with you: if you kindly watch this TL movie you will see that around 00:19, the scenery starts shaking as if the camera was moved by the wind. Actually, this is not the case. Here is a fixed crop version of the same frames where there is no shake at all.
I have used zooming in and zooming out before with great success and observed no shake at all. Here is an example.
Your assistance will be greatly appreciated.
Sedat
RE: Shaky zoom-in ? Any clues ? - Gunther - 2014-03-04
Did you animate the crop with LRTimelapse/Lightroom? I wouldn't recommend doing this since LR rounds to full pixels when cropping and since you obviously shot video, you only have small resolution.
BTW: I wouldn't recommend the approach with Video since you won't be able to do longer exposure times as 1/30 sec. and like you see the resolution is very low. Don't fear to stress your shutter...
RE: Shaky zoom-in ? Any clues ? - bilgebay - 2014-03-04
Gunther,
Yes, I am animating the crop with LRT/LR.
I think you are spot on with the resolution issue. I was suspecting that too... these jumps never happened with my full res RAW image TLs. The resolution is something like 1808x1216.
I will take your advice and shoot RAW images.
Thanks
Sedat
RE: Shaky zoom-in ? Any clues ? - Gunther - 2014-03-04
Yes and please consider animating the Zoom in video processing. The encoder might fail otherwise as well.
RE: Shaky zoom-in ? Any clues ? - bilgebay - 2014-03-04
Will do, thanks!