Change "canvas size" when using "Replace with After Effects Composition"

[LamosVamos]

I need some help with Adobe Premiere and After Effects (New to this stuff)

When I select a clip in Premiere (1920x1080) and replace it with an AE composition, the clip in AE gets converted into a 1440x1080 (4:3 aspect ratio), but in Premiere, it's still 1920x1080 (16:9 ratio). It's hard to edit something in AE when you have to work with 2 different ratios, so I tried to change the composition of the clip in AE to 1920x1080. Now the canvas is in the right resolution, but the clip is still 4:3, so I use STRG + ALT + F to "Fit in Comp". With that, both canvas and clip are now 16:9 in AE and I can work on it.

Now here comes the problem: When I go back to Premiere, the original clip ALSO stretched, when I used "Fit in Comp" in AE and I don't know how to fix this.

All this happened only because the clip got converted to 4:3 in the first place.

So is there a way to fix that conversion? Or is there maybe a workaround I'm missing? I tried everything I could but it seems like I have to work with 4:3 for now.

I'd really appreciate any answer.

[Roei Tzoref · Accepted solution]

When I select a clip in Premiere (1920x1080) and replace it with an AE composition, the clip in AE gets converted into a 1440x1080 (4:3 aspect ratio),

doesn't sound right. are you sure that you are not working in a premiere sequence with stretched aspect ratio? check your premiere sequence settings to confirm (post a screenshot too).

if it's a stretched aspect ratio in premiere (and it's intentional..), then in Ae you can toggle the aspect ratio correction button to correct it visually so you can work

[LamosVamos]

Toggling this aspect ratio correction works! Thank you so much for the quick answer! Can't believe that I overlooked this option.

Have a nice day!

[Rick Gerard]

The comp is the same frame size as the footage in Premiere Pro. The imported footage interpretation should match Premiere Pro's settings. Check the footage interpretation in Premiere Pro first and make sure it is correct. Pixel aspect ratio in the interpretation settings is critical. It has to be correct. Even when I shoot non-square pixels I work in square pixel comps in AE because AE handles the conversion automatically if the footage is interpreted as it actually is.