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Common pixel aspect ratios – Adobe Premiere Pro CS4 User Manual

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USING ADOBE PREMIERE PRO CS4

Project setup

Last updated 11/6/2011

You could occasionally encounter a distorted clip if Premiere Pro interprets pixel aspect ratio incorrectly. You can
correct the distortion of an individual clip by manually specifying the source clip pixel aspect ratio in the Interpret
Footage dialog box. You can correct similar misinterpretations of groups of same-size files by editing the file
Interpretation Rules.txt.

Pixel and frame aspect ratios

A. 4:3 square-pixel image displayed on 4:3 square-pixel (computer) monitor B. 4:3 square-pixel image interpreted correctly for display on 4:3
non-square pixel (TV) monitor

C. 4:3 square-pixel image interpreted incorrectly for display on 4:3 non-square pixel (TV) monitor

More Help topics

AE CS4: New pixel aspect ratios

Common pixel aspect ratios

Pixel aspect ratio

When to use

Square pixels

1.0

Footage has a 640x480 or 648x486 frame size, is 1920x1080 HD (not
HDV or DVCPRO HD), is 1280x720 HD or HDV, or was exported from an
application that doesn’t support nonsquare pixels. This setting can also
be appropriate for footage that was transferred from film or for
customized projects.

D1/DV NTSC

0.91

Footage has a 720x486 or 720x480 frame size, and the desired result is
a 4:3 frame aspect ratio. This setting can also be appropriate for
footage that was exported from an application that works with
nonsquare pixels, such as a 3D animation application.

D1/DV NTSC
Widescreen

1.21

Footage has a 720x486 or 720x480 frame size, and the desired result is
a 16:9 frame aspect ratio.

D1/DV PAL

1.09

Footage has a 720x576 frame size, and the desired result is a 4:3 frame
aspect ratio.

D1/DV PAL
Widescreen

1.46

Footage has a 720x576 frame size, and the desired result is a 16:9 frame
aspect ratio.

Anamorphic 2:1

2.0

Footage was shot using an anamorphic film lens, or it was
anamorphically transferred from a film frame with a 2:1 aspect ratio.

HDV 1080/DVCPRO
HD 720, HD
Anamorphic 1080

1.33

Footage has a 1440x1080 or 960x720 frame size, and the desired result
is a 16:9 frame aspect ratio.

DVCPRO HD 1080

1.5

Footage has a 1280x1080 frame size, and the desired result is a 16:9
frame aspect ratio.

A

B

C