Pixel Aspect Ratio used by Adobe OnLocation

QUESTION: What is the pixel aspect ratio used when AVI T1/T2 formatted files are generated?
CASE 1: After specifying AVI T2, recording video and importing it into Premiere 6.5 (With Matrox RT100) it says that PIXEL ASPECT RATIO is 0.889
and audio 48KHz/16 bit (so it needs rendering!)
CASE 2: After doing as above but with AVI T1 and importing the same way it shows that PIXEL ASPECT RATIO is 0.9 but audio as 32KHz/16 bit, although during recording in OnLocation is shows that audio is 48kHz/16 bit?
It there any way to get PIXEL ASPECT RATIO 0.9 and audio as 48kHz?
Are there any changes between AP 6.5 and Pro in AVI formats?
Or is it how Matrox card is handling those formats?

Similar Messages

Custom Pixel Aspect Ratios

I am trying to create a custom pixel aspect ratio using the Interpretation Rules.txt file. Whenever I try this and save me new custom PAR it never shows up when I try to convert my footage to that PAR. This is what it looks like:
# only adds a custom pixel aspect ratio to the UI
# uncomment the next line to try it out
*, *, *, *, * = 1364/1000/"HDV to DV AR", *, *, *
Am I doing something wrong, I am confused why I don't get an option from the drop down box inside the interpret footage window that reads, "HDV to DV AR" (1.364)

It is the best method of getting my HDV video to appear the same size as my DV video in a widescreen DV timeline. I can do thinks like zooming in or changing the timeline aspect ratio to 1.333 but even then I have to change the PAR on both video for it to match and it changes the HDV a good amount. If i could just get this method to work it would be so easy. I don't understand why it is so hard to just make a custom pixel aspect ratio. It should be an easy thing to do.

Adobe Media Encoder MPEG2 pixel aspect ratio

I'm trying to output an MPEG2 for DG systems @ 720x512 but the pixel aspect ratio pulldown menu only gives picture aspect ratios (ie 4x3 or 16x9) and then gets the pixel aspect ratio automatically from that setting. So @ 720x512 the pixel aspect ratio is 4:3(.948), but I need a .9 ratio. When the source is 720x512 it adds black bars to the side, when the source is 720x480 it adds a little black to the top and bottom but stretches the image so it gets blurry. I can render out an AVI at 720x512 with a .9 pixel aspect ratio, so why not an mpeg2? Any work arounds? Is it the same in CS5?
I'm in CS4 on Vista64.

I'm trying to output an MPEG2 for DG systems @ 720x512 but the pixel aspect ratio pulldown menu only gives picture aspect ratios (ie 4x3 or 16x9) and then gets the pixel aspect ratio automatically from that setting. So @ 720x512 the pixel aspect ratio is 4:3(.948), but I need a .9 ratio. When the source is 720x512 it adds black bars to the side, when the source is 720x480 it adds a little black to the top and bottom but stretches the image so it gets blurry. I can render out an AVI at 720x512 with a .9 pixel aspect ratio, so why not an mpeg2? Any work arounds? Is it the same in CS5?
I'm in CS4 on Vista64.

Change Pixel Aspect Ratio Once Already Started?

I've been having trouble with my video looking extremely blurry -- I thought it had to do with rendering but it looks the same rendered as it did before rendering. I think I figured out that it has to do with the pixel aspect ratio being too small (or is it frame size, or are those the same thing? It's all very confusing for me!). The final output for this video is YouTube, but it also looks blurry within Premiere (mainly when stretching the Program Monitor so I can see it larger).
I helped on a video a few months ago that looked perfect, everything was really crisp in Premiere (after rendering, that is) and when exported to YT. The pixel aspect ratio was 1920x1080 for this video, and the one I'm working on now is 720x480.
So, can I enhance the pixel aspect ratio of the video I'm working on now? If I'm not able to change the pixel aspect ratio once I've started the project, what would be your advice going forward?
Thanks, and please let me know if you need any more information!

You need to be sure your sequence setting matches
the frame size and aspect ratio of your source media.
To create a sequence that matches your footage, try this:
Once you have created a properly configured sequence,
you can copy (Ctrl+C) then paste (Ctrl+V) your already edited
clips into the newly created sequence.
Also:
Changing a Sequence to Match a Clip
http://www.video2brain.com/en/lessons/changing-a-sequence-to-match-a-clip
Create a sequence
http://help.adobe.com/en_US/premierepro/cs/using/WS3E67AF4C-B2A2-4f04-90B4-F8CCFB74B144.ht ml#WSd79b3ca3b623cac941d41a681247d1f35a4-7fff
What's the best export format or codec?
http://www.video2brain.com/en/lessons/whats-the-best-export-format-or-codec

Urgent MPEG2 question (pixel aspect ratio)

Is a composition that is set as a D1/DV NTSC Pixel Aspect Ratio (0.91) able to be exported as a MPEG2 file?
I have a very large, very complicated project file with a D1/DV NTSC Pixel Aspect Ratio and I'm trying to save it as a MPEG2 file type because it has the best compression for the quality and need the file sizes to be small. However when I go to the MPEG2 Format Options when exporting, it only has Standard 4:3 (0.80), Square Pixel (1.00), Widescreen 16:9 (1.067), and Widescreen 2.21:1 (1.326).
Is there way I can have this project in MPEG2 format and not have letterboxing, stretching or cropping?
Thank you,

What version of AE are you using?
What are your composition's dimensions? Did you use the NTSC DV composition preset?
First off, if file size is your only concern, then you should encode to h.264, not mpeg2.
Mpeg2 is mainly used for DVD production. H.264 is a much more advanced codec for the sake of making a good-looking & small file.
If playback is computer-based (not DVD), you'll probably want to nest your D1/DV comp inside a square pixel equivalent, and then render that file to a Quicktime (Animation codec @ best/full quality). Then, use Adobe Media Encoder, or your encoding software of choice, to make the compressed (h.264) version.
That being said, and if you are going to mpeg2 for DVD, then how are you going about encoding the file out of AE?
You should be selecting the "MPEG2 DVD" output module.
Keep in mind, that, if you are going to DVD, a better procedure (to provide maximum quality) would be to render to the Animation codec first, and then compress (2-pass VBR encode) that prerenderd movie to mpeg2.

Custom Pixel Aspect Ratio (After Effects CC 2014)

Hi All,
How do you create a custom Pixel Aspect Ratio for After Effects CC 2014. I need a PAR of 3.3, as it would help me solve a technical problem i've been having with projection mapping.
I've tried editing the Interpretation Rules.txt file which was hidden within the Users\Appdata\Roaming\Adobe\After Effects\13.1 Folder. To remove the last # so i can at least see that I can set up a custom PAR.
But it doesn't appear in the drop down menu when creating a comp, or interpreting footage.
I've also made the same change to the Interpretation Rules.txt file in the Premiere PRO CC 2014\Plug-ins\en_US\ folder.
And I've restarted my PC after changes just incase Media Core wasn't updating itself properly.
I can see the Custom PAR as an export option out of Media Encoder. But thats not what i need. I need to be able to correct a render which had a PAR of 3.3 without losing pixel information, much like an Anamorphic workflow.
Anyway, Any help would be appreciated.
Thanks!
Evan

Hi Rick,
You're right, it's no known PAR... completely arbitrary and custom to this particular job. I'll run you through my process.
I have a projection surface (a basketball court) Which needs to have content designed onto it which is viewable from one perspective point (camera 1) in the stadium. The problem is that Camera 1's viewing angle to the court is quite shallow.
This is what Camera 1 sees:
I will be generating like this for the surface so that it looks like a deep 3d surface from "camera 1"
Now, the problem is that when I perspective correct the renders to fit what the projector will be projecting from straight down. There isn't enough pixel information for the height of the image. Meaning the pixels will smear.
This is the image that would be projected from a top mounted projector to achieve the 3d effect from the image above, you can see the loss of information in the the height pixels.
My solution for getting more information into the height is to render out of our 3d packages with a Pixel Aspect Ratio of 3.3. This was the sweet spot I found to get enough pixel information to match the pixel output of the projectors.
The resulting render looks like this (note, the angle of the camera hasn't changed)
As you can see, there is more height detail now, which will mean that that last row of pixels will be remain fairly sharp.
So, at this point, I can render from my 3d applications, and conform to the projector dimensions, with very little information loss in the height of the projected image, and without compromising my 3d persepctive.
I'm using the plugin "Camera Mapper" to project this render onto a plane which gets me the full frame of the projector at the right resolution, 4608 x 2304
The tricky part how to composite elements into the scene in an intuitive way.
If i want a horse to look like its jumping through the scene from "camera 1", like this:
Then in the that contains all the information, It will look like this:
Now that's all well and good, but it'll be harder to create realistic looking effects from this view, because they'll all need to be stretched.
I'd like to retain all the image information and just view the comp as though it's squished down.
I imagine this could be done easily by changing the comp settings to a PAR of 3.3.
That way, all the pixel information remains, but i can design in a realistically proportioned composition.
I hope that gets you up to speed on my issue, and my request for a solution.
So, in summary. I'll I'm really looking for is a way to customise the PAR options so that I have a custom available that I can apply to this, and only this scene.
Does this makes sense?
Cheers,
Evan

Pixel Aspect Ratio Discrepancy

My first project after being upgraded to CS4 (with Matrox Axio) was supposed to be very simple and wasn't. A :10 sponsorship billboard with animated background we always use (avi), client supplied logo (tga), and announcer audio track (wav). Set up the project/sequence to be D1/DV 0.9, just like always. Targa file was also 0.9. So far everything is normal. Then rep decides they want a plain blue background instead of the animated one, and would like to add a phone super. Made a solid blue background in the title generator, again 0.9, and when I put it on the timeline, I could no longer see video. Even if I dbl clicked on it, I couldn't see either background or logo in the source monitor. In case the title generator didn't like making a color solid, I re-made the graphic in Photoshop, again 0.9 tga, created a new project from scratch, imported my sources and when I put the background on the bottom track, again I couldn't see any video. I changed the pixel aspect ratio of the tga background to square pixels, put it on the timeline and that worked. I could see the logo again. So I made the phone super in the title generator and thought okay...square pixels. Brought the title graphic onto the timeline, and couldn't see any video. Changed the title graphic back to 0.9, brought it back onto the timeline, and it worked. So I had a background targa graphic in square pixels, a logo targa graphic in 0.9 and a title graphic in 0.9. One more thing that was a new experience for me was that a box popped up that said I needed to scrub through the sequence before it would play in real time. So I did, and it played. Can anyone share with me some logic to this discrepancy? Thanks.

I wonder if this has anything to do with the fact that Adobe changed the PAL pixel aspect ratio from CS3 to CS4?
I've fallen foul of this a couple of time.
There's some information here:
http://help.adobe.com/en_US/AfterEffects/9.0/WS3878526689cb91655866c1103906c6dea-7f3aa.htm l
about halfway down the page
and more here:
http://blogs.adobe.com/toddkopriva/2009/07/pixel_aspect_ratios_in_after_e.html
which has some useful links.
Although they're mostly talking about After Effects, this applies equally to Premiere CS4.
HTH
Mark

AME Export from HDV source: Pixel aspect ratio squeezed in Queue; ok in direct export.

I have some existing HDV footage that was converted to Cineform codec (CFHD) in an .avi file that I need to export. My target requires Windows media format (.wmv Window Media video 9).
My output settings are the following:
640x480, square pixels, 29.97, lower, VBR, 2 pass unconstrained, 800 kbps.
When I export these files in a sequence directly from Premiere Pro CC (Export button), the pixel aspect ratio looks correct. (It looks ok in Premiere and in the Premiere Export window, too.)
When I export using the Queue button in Premiere to AME CC, the video renders out squeezed, as if the aspect ratio is ignored.
I can also see the squeezed video in the AME preview window when the file is rendering.
This worked OK previously in Premiere 5.5.
Is there a setting that controls this and allows normal rendering from the Queue?
Using the Queue is much preferred to avoid bottlenecks in workflow.
System: Windows 7 enterprise 64 bit, Lenovo W510, Core i7, 16GB ram.
Nvidia Quadro FX 880M
Premiere Pro CC: 7.2.1(4)
Adobe Media Encoder: 7.2.0.43 (64-bit)
Not sure if I am using the Mercury Playback Engine GPU Acceleration.
Thanks.

I'm using CC, updated today. (see system info at top).
I'm starting to wonder if the codec info is not read correctly when using the Queue (Cineform codec). I took your suggestions and created a new sequence with one clip and used the same settings. I opened the export settings window in two separate ways:
Export settings in Premiere (Ctrl M). All is good in the Source tab. PAR is interpreted correctly:
I sent the export to the queue, and from the job in AME clicked the "Custom" link to retrieve the same settings window.
However, the Source video PAR is not interpreted correctly:
This must be related to why the render from the AME queue is not correct.

Interpretation rules not working; can't change pixel aspect ratio

Hi,
I'm following the instructions on the Adobe help site here...
http://helpx.adobe.com/premiere-pro/using/aspect-ratios.html
...so that I may use custom pixel aspect ratios in the interpret footage dialog box.
Unfortunately none of my changes to this file have any effect, and I'm clueless. These are cinemaDNG sequences and I'd like to keep working with them raw, otherwise I would take the time to export them and stretch them en masse through AE.

Hi Kevin, a mix of BMPCC and 5Dmk3 Magic Lantern. ML raw at 60p has a non-standard PAR, most of my footage is shot in this format. I need 0.65, the closest is 0.9091. I was disappointed at first to find no ability to manually enter the value, then elated to find the Interpretation rules text file, then disappointed again to find it doesn't work...hoping this ends well!

The (new) Premiere pixel aspect ratio is wrong for my PAL DV cam footage

I've had a Sony TRV-950E DV-cam since 2003. I've been shooting DV PAL in widescreen.
I just bought Elements 12 to edit my footage, and discovered that the pixel aspect ratio for D1/DV PAL Widescreen has been updated to 1.46 (old value 1.42).
The theory behind this change is that video recorded on 720x576 is slightly wider than 16:9 and that the 16:9 portion is 704x576.
Unfortunately this is not correct for my footage! I've captured the video from my DV-cam (by firewire) and opened it in Premere and it is streched to be shown as 1050x576.
So I did a test:
I filmed a steady shot of a perfect circle and captured the video from the camera and opened it in Premiere. The pixel ascpect ratio 1.46 makes the display 1050x576.
The question is: Am I seeing this displayed as a perfect circle now?
This can be tested:
I make a picture of a perfect circle in Photoshop (square pixels) with size 1024x576. I imported this picture into the Premiere project, and match the two circles: The filmed one, and the Photoshop one.
They DO NOT match! The one on the video is slightly stretched in width.
So then I stretch the Photoshop picture in width to become 1050x576. I then import this picture into the project. And now I have a perfect match between the circles!
This means that my DV camera actually records a 100% 16:9 picture on all the pixels 720x576 - and not a slightly wider picture with the 16:9 part being in 704x576 (which is the reason for the change in pixel aspect ratio from 1.42 to 1.46).
I have some HD scenes that I want to import (and downscale) into my SD project also, and I also have a lot of still pictures.
Unless I can change the setup i Elements to the correct ratio 1.42, these stills and sqare-pixel-video (HD) should ideally be streched from 1024x576 to 1050x576 to match (become equally stretched as) all the SD footage.
How do I solve this?
I just bought Elements 12 three days ago.
(I just tried opening the captured video in Windows Movie Maker - and that program must use pixel aspect ratio 1.42 since the video is diplayed correctly as 1024x576 with a perfect circle)
Regards,
Tom from Norway

Tom
After much thought and exploration and experimentation, I have come to the conclusion that there is no practical purpose for doing anything other than importing your media into the project and editing/exporting. I find no distortion in doing so, be it in the video samples that you posted or in still models that I created for the pixel aspect ratio 1.422 vs 1.4587 for D1/DV PAL Widescreen.
If you have not already, please read the following about the Adobe DV Widescreen Pixel Aspect Ratio change from 1.422 to 1.456.
Please start in the first link which gives some get subsequent links in it
http://forums.adobe.com/thread/673877
http://www.mikeafford.com/blog/2009/03/pal-d1-dv-widescreen-square-pixel-settings-in-after -effects-cs4-vs-cs3/
Also, you may find the following article on square and non square pixels of interest. It uses the PAL DV Widescreen 1.422 pixel aspect ratio in its discussion.
http://library.creativecow.net/articles/gerard_rick/pixel_madness.php
Aside from the explanation for the rights and wrongs of the matter, this is what I actually observed taking your PAL DV AVI Widescreen and PAL MPEG2.mpg Widescreen into the same Premiere Elements 12 Windows PAL DV Widescreen project. Along with your video files were still images that I created in Photoshop Elements 11 Full Editor:
1024 x 576 document with a red circle on Layer 2 of the Layers Palette
1050 x 576 document with a red circle on Layer 1 of the Layers Palette.
The red circles were superimposed in creation. The difference in the pixel dimensions between the two are evidenced by Layer 1 content peaking through on the left and right.
The gpsot readout for pixel aspect ratio for each of the videos was
a. Your PAL DV AVI 720 x 576 Widescreen = 1.422
b. Your PAL MPEG2.mpg 720 x 576 Widescreen = 1.422
Each of the Photoshop Elements documents (circles) saved as .psd files 1050 x 576 pixels.
When all were taken into Premiere Elements 12 project manually set for PAL DV Widescreen, they looked like the following, no display of distortion.......
PAL DV AVI Widescreen 720 x 576 (now the pixel aspect ratio in Premiere Elements Properties was shown as 1.4587, not the 1.422 seen in gspot before import)
PAL MPEG2.mpg Widescreen 720 x 576 (now the pixel aspect ratio in Premiere Elements 12 Properties was shown as 1.4587, not the 1.422 seen in gspot before import)
Edit Menu/Preferences/General with check mark next to "Default Scale to Frame Size" was in effect.
As for the red circles stills (1050 x 576 to equate to the square pixel version of 720 x 576 widescreen) did not distort when brought into the Premiere Elements 12 Edit area monitor which is established by the PAL DV Widescreen project preset with the pixel aspect ratio = 1.4587.
The jpg version of the Photoshop Elements document (.psd) 1050 x 576 pixels (square pixels) looked like:
And, when this Timeline was exported Publish+Share/Computer/AVI with the DV PAL Widescreen preset, there was no distortion in the export. It looked undistorted as it did before export.
So, unless I am overlooking a key point here, I cannot see a reason why you cannot use the video sources that you presented for sampling as weil as stills with the 1050 x 576 pixel dimensions.
The only time I see any distortion possibilities is if you use a player that does not recognize the 16:9 flag that stretches the 720 x 576 to 1050 x 576 for display after encoding.
Trying to convert Premiere Elements 12 which uses the 1.4587 pixel aspect ratio for PAL DV Widescreen into a Premiere Elements 7 which uses the 1.422 pixel aspect ratio for PAL DV Widescreen is up hill in spite of creative thinking on your side.
Please review and let me know if you are seeing another different from what I am reporting with the samples that you posted.
Thank you.
ATR

Pixel Aspect Ratio Issues-FCP HELPP!!!

Okay folks, so currently I am putting together my reel in FCP, however I am encountering a few issues. So my source formats are different in pixel aspect ratio, some was shot on the 7D, some on the Alexa, and some on super 16mm, and a few after effects animations. However all of it is HD, and in ProresHQ 422. My problem here is when I import all of my media into FCP if the timeline is set to square pixels, the HD(1440x1080) footage looks squished, and if I set the timeline to HD(1440x1080) the square pixel footage looks blocky, pixelated and super square.
That said, some of the footage from the 7D is labelled as square and some is labelled as HD(1440x1080), and all the after effects stuff is square.
Right now i am dealing with it and just leaving my timeline as green-preview render, so everything looks mostly normal. However whichever format is not that of the timeline, the footage is degraded a tiny bit, so that when I pause the footage it looks great, but in preview it is slightly blurry.
My question is, is there a way to format everything as either square or HD(1440x1080), so it looks normal, or is there a way to use mixed media formats and not have the preview blur. I'm going crazy over here, as I just graduated and am in dire need of a reel so I can begin to apply for jobs, etc....Or is there a way to formate my prores setting to transform everything to square pixels?
Thanks guys!

You can use compressor to convert everything to square pixels, however there's no need to worry about how it looks in fcp when it's playing but not fully rendered. Try exporting a short section (mark an in and out around the section - and going file: export: quicktime Not quicktime conversion) with current settings. If you render the material, it should look fine when you play it within fcp. Unfortunately, the render settings in the sequence menu are not particularly intuitive, but do a little playing around with them if you've got the time.
I prefer to convert all my sources to my intended pixel dimensions, frame rate and codec before I edit in fcp, but it may not be necessary in your case.

Pixel Aspect Ratio bug in Media Encoder export

Having a weird bug in media encoder exports that I can't seem to figure out. I have a 1080p sequence with a mix of 1080p footage and PAL DV assets. The PAL assets have a pixel aspect ratio of 1.0940. When I format them in my Premiere sequence, I am able to scale them correctly and they look fine. When I export them directly from premiere to broadcast standards it's also fine.
However, when I try to export these sequences in Media Encoder via File->Export->Media-> Queue using the same exact settings (I'm using a preset), Media Encoder formats the PAL assets as if they have square pixels. Thus, half of the footage in my sequences gets horizontally "squished." Note that this does not happen for footage that natively has square pixels, such as my 1080p camera footage.
Has anyone encountered this bug? It seems strange to me that Media Encoder would treat items in a sequence differently that Premiere during export, I was under the impression they were using the same rendering engine... It's really a problem as I'm going to have to crank out multiple versions of this 48-minute film and not being able to queue those exports is going to be a huge headache.
Using latest version of CC 2014.1 (8.1.0).

Screenshot of Premiere Export (fills screen):
Screenshot of Media Encoder export: (notice the pillar-boxing)

Problem with pixel aspect ratio

I searched but found no answer.
I have several Maya renders which are at a resolution of 720x486 and a pixel aspect ratio of 1.2. I composited my image sequences in after effects interpreting that 1.2 pixel aspect ratio. I then exported a quicktime movie using no compression at 24fps at a resolution of 720x480 NTSC 16:9.
When I import this video into Encore 2.0 It comes out as full screen. Not only is it full screen, but when I preview the dvd, the video is blurry with scan lines and black bars on the left and right side. The menu however, is widescreen (I used a template as a test)and perfectly clear. I tried to select the asset and go to file>interpret footage, but this option is grayed out. I have also tried exporting an avi from after effects and importing that into Encore. It still will not let me set the pixel aspect ratio. I have read that After Effects does not embed the pixel aspect into exported videos. I have also read that I should export mpeg2 videos for use in Encore, however I do not see this option in After effects or Premiere Pro.
What am I doing wrong? Any help is appreciated. If I left any information out that could be useful, please let me know.

(Ack, for some reason I typed "DVI" and really meant "DV")
Thanks for the response. I don't really care if I preserve the 4:3 aspect ratio. Or does my GL1 not use square pixels and I just never noticed it? It's strange I've never seen this problem until FCE HD.
I have tried exporting a number of ways from FCE, including Export > QuickTime Movie... and Using QuickTime Conversion... For the latter, I typically set it to export as 720x480. I always export as video. The final export contains video clips as well as still images within the video.
I am a bit embarrassed having to ask this question. I've been working with still images in photoshop for over a decade and worked a lot with video during that time as well.
Thanks again.

Still image pixel aspect ratio wrong in exported video (but correct in Premiere renders)

I've saved a targa still image from my footage and added it to the bin. It's properties show as follows:
Image Size: 1440 x 1080
Pixel Aspect Ratio: 1.3333
This correctly matches my sequence settings as I'm working with 1080p widescreen footage.
The image appears as expected in the Program window both before and after rendering previews. However, once I export my sequence as a video file, the still image is squashed (displaying incorrectly):
A work around would be to stretch out the still to a width of 1920 in Premiere so that the export displays it back at its normal aspect ratio - which works - but I don't understand why I should have to do this.
The other solution I found was to go to the bin and 'Modify > Interpret Footage' and although "Use Pixel Aspect Ratio from File" already shows the correct settings, to actively reset it (to the same pixel aspect ratio) with the 'Conform to' option:
This works too.
Surely a bug?
(using Premiere Pro CC)

Thanks for the quick reply. But then why does the still's properties (in my bin) show the pixel aspect ratio as 1.3333 (not square pixels, 1.0) and should it not appear incorrectly in both the preview renders and the exported video ? This seems inconsitent to me.

Draw with pixel aspect ratio

I use pencil tool, brush size 1 pixel. When pixel aspect ratio less then 1, pen draws a double pixels. Does
anyone have solutions to it?

Looking into this a little more, what I think is going on is that in previous versions, Shift dragging compensated for the non-square pixels, so that drawn items show up correctly. If you look at the Info Box in 5.5 when shift drawing a circle, the height is greater then the width, when working in a non-square document.
In 6.0, when you do the same thing, the height and width are the same. So, no compensation is being done for the non-square pixels.
In 5.5, if you place a circle by entering the dimensions in the ellipse option, say 400, by 400, with PAR turned on, the image is squeezed side to side.
So, In 5.5 Shift Compansated for nonSquare pixels. In CS6, it does not.

Pixel Aspect Ratio used by Adobe OnLocation

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