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Setting a zoom level on part of a clip

Contributor ,
Aug 22, 2023 Aug 22, 2023

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I have a clip of a group of aircraft heading to the horizon, unfortunately there is a FAT head appearing bottom right for several seconds, this spoils the effect.

I can see how, using, motion, position, and scale, I can effectively zoom in and up on the enlaged screen area to remove this fat head.

Unfortunately it does not work in the way I want.

If I zoom to 145, despite adding toggle animation points when the head appears to when it goes, the WHOLE clip takes 145.

What I want is the view to be the default 100, then at point fat head (just before) I want to zoom to 145, for 4 seconds, then I want to return to 100 zoom/default.

Anyone say how I can do this, or what I am doing wrong to get 145 set for the whole clip, despite toggling the eeffect.

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correct answers 1 Correct answer

New Here , Aug 23, 2023 Aug 23, 2023

you have to carefully ensure your keyframes reflect the zoom levels you want;

you need four keyframes

1,) set a key at the point where you want the ZOOM IN to begin (e.g., a number of frames before you want to reach the 145%--depending on how fast a zoom you want)--that first keyframe will be 100

2) next keyframe goes at the point you want to reach full zoom, at the point where you want the four-second HOLD at 145 to begin; 2nd keyframe at 145

3) at the end of the four-second HOLD, third keyframe--a

...

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Community Expert ,
Aug 22, 2023 Aug 22, 2023

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If the clip is stationary, mask out the head: replace by some other part of the clip.

Export to intermediate file and use that to make the zoom effect.

Beware, zooming to 145% will degrade the image quality.

Take a screenshot of a frame with the head at its largest.

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Contributor ,
Aug 22, 2023 Aug 22, 2023

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Won't work. Tried that, there are clouds that mess up the whole thing. All I want is zoom in/down to take the head out, then zoom back to 100, it's a short clip so not too worried about the quality.

I just can't see who to have 1 - 10 seconds at 100, 11 - 12 seconds at 145, 13 - 18 seconds back to 100.

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Community Expert ,
Aug 22, 2023 Aug 22, 2023

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Try using the Transform effect instead.

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Community Expert ,
Aug 22, 2023 Aug 22, 2023

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If the problem part is only a few frames, insert B roll or cut, trim, and use a transition.

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New Here ,
Aug 23, 2023 Aug 23, 2023

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you have to carefully ensure your keyframes reflect the zoom levels you want;

you need four keyframes

1,) set a key at the point where you want the ZOOM IN to begin (e.g., a number of frames before you want to reach the 145%--depending on how fast a zoom you want)--that first keyframe will be 100

2) next keyframe goes at the point you want to reach full zoom, at the point where you want the four-second HOLD at 145 to begin; 2nd keyframe at 145

3) at the end of the four-second HOLD, third keyframe--also at 145 (this is the beginning of the ZOOM OUT)

4) last keyframe set to 100, at the end of your ZOOM OUT

That should take care of it for you.

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Contributor ,
Aug 23, 2023 Aug 23, 2023

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Thank you RCM_Productions. That is EXACTLY what I needed, none of the other suggestions fully addressed what I wanted to do. Much appreciated.

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