<p>You can do this by selecting every layer except the solid (your letterbox) and precomping it. Then, you can switch into your precomp and do as much zooming as you like. If you then render the composition with your precomp plus the solid layer on top, your solid will be unaffected by the keyframing going on inside the precomp.</p>

CC BY-SA 4.0
2020-06-25T11:58:27.197Z
How do I zoom into into all those layers at once after pre comping it? I am sorry if this sounds too amateur.
ChaoS Adm
CC BY-SA 4.0
2020-06-25T07:16:27.350Z
2020-06-25T07:16:27.350Z
Florian Claaßen
<p>I would make a black solid layer above all the others with your mask (as you have I think).
Then make a Null layer.
Parent all of the other layers to your Null layer.<br />
See parenting tutorial <a href="https://helpx.adobe.com/after-effects/how-to/animating-with-parenting.html" rel="nofollow noreferrer">here</a>
Then adjust the scale of the Null and all the other layers will follow it.</p>
<p>Alternatively you could pre-comp all your other layers, but you will lose resolution on them as they scale unless you do some other things...</p>

CC BY-SA 4.0
2020-07-07T12:20:06.030Z
Yeah this is what I did. Thanks!
ChaoS Adm
CC BY-SA 4.0
2020-07-05T17:20:11.860Z
2020-07-05T17:20:11.860Z
tomh
<p>So I am trying to make a small clip wherein I have a solid black layer masked on top of a video to give it a film bar. Now at one point I want to zoom into the video without zooming into the solid layer. You can see my screen below. I am pretty new to AE. Any idea how I can go about doing this?</p>
<p><a href="https://i.sstatic.net/h005A.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/h005A.png" alt="enter image description here" /></a></p>

<after-effects><effects>
How to zoom into a video inside of a mask?
ChaoS Adm
# How to zoom into a video inside of a mask?

(Asked by: username_0 on 2020-06-24)

So I am trying to make a small clip wherein I have a solid black layer masked on top of a video to give it a film bar. Now at one point I want to zoom into the video without zooming into the solid layer. You can see my screen below. I am pretty new to AE. Any idea how I can go about doing this?

[![enter image description here](https://i.sstatic.net/h005A.png)](https://i.sstatic.net/h005A.png)

**Tags:** after-effects, effects


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## 2 answers

### Answer by username_1 on 2020-06-25. Score: 1

You can do this by selecting every layer except the solid (your letterbox) and precomping it. Then, you can switch into your precomp and do as much zooming as you like. If you then render the composition with your precomp plus the solid layer on top, your solid will be unaffected by the keyframing going on inside the precomp.

> **Comments:**
> **username_0**: How do I zoom into into all those layers at once after pre comping it? I am sorry if this sounds too amateur.  

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### Answer by username_2 on 2020-07-05. Score: 0

I would make a black solid layer above all the others with your mask (as you have I think).
Then make a Null layer.
Parent all of the other layers to your Null layer.  
See parenting tutorial [here](https://helpx.adobe.com/after-effects/how-to/animating-with-parenting.html)
Then adjust the scale of the Null and all the other layers will follow it.

Alternatively you could pre-comp all your other layers, but you will lose resolution on them as they scale unless you do some other things...

> **Comments:**
> **username_0**: Yeah this is what I did. Thanks!  

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