Aspect Ratio of Letterboxed DVX100 Footage

I'm wondering if anyone knows what the exact aspect ratio would be of DVX100 footage with the widescreen matte turned on. In trying to measure it in Final Cut, applying the 1.66:1 and 1.70:1 mattes don't do anything, but the 1.78:1 matte crops off a slight additional amount of any shot. Using Compressor, the 1.75:1 matte also crops off slightly more footage than was originally matted by the letterbox.
If it helps, here are the numbers that Compressor provides:
Using 1.66:1 matte crops the top and bottom to a value of 47. Using a 1.75:1 matte crops the top and bottom to 57 and selecting 'Letterbox Area of Source' crops the top and bottom to 54.

I can't tell you exactly what aspect ratio the DVX100 with the widescreen matte turned on. I can tell you what a 4x3 matted aspect ratio should be. It should be 4x3 1.77777778.
Figuring this out in NTSC broadcasting specs is a little misleading Eg: 4x3 1.33 native equates to 720*486=1.48148148148 or 720*480=1.5 due to non-square pixels. Conversion to square pixels helps. 640*480=1.33333333. for 16x9 640*360=1.77777778.
I wouldn't rely on a correct line count coming out of the camera or out of Final Cut without a profressional grade scope ie: Tektronix.
So, if what you're trying to do if place mattes to match your video I would suggest creating the mattes manually to line up with the existing mattes.

Similar Messages

  • Aspect ratio problem with original footage.

    I use a Canon mini DV camera (MD160) that shoots in widescreen, and I do all my editing in iMovie 08, all projects are Widescreen 16:9.
    No problems until now, but I imported footage the other day that came up squashed (pillarboxed) in 4:3 size. The thumbnails are normal size (widescreen), as they always have been, but the preview screen has cropped the footage to make it fit in my widescreen project. So I'm losing some of my shot.
    What really messes me up is that this has happened to random pieces of footage from 6 months ago too, but some footage from last week is unaffected. It is NOT THE PROJECT that has changed, but the original imported footage in my event library, which was always widescreen. Even original shots I took with the iSight camera have changed to the squashed format.
    And I obviously can't e-mail Apple, so what's going on? Is there any idea out there what caused this? And how do I alter original footage - I don't want to crop, so is there any way to stretch a 4:3 image into 16:9 - if I can, it will look fine, back to normal.

    <font color="blue"The thumbnails are normal size (widescreen), as they always have been, but the preview screen has cropped the footage to make it fit in my widescreen project. So I'm losing some of my shot.</font>
    The thumbnails use the current embedded "scaled" dimensions to create the aspect for the thumbnails. On the other hand, the project ignores the current dimensions and uses the embedded aspect flag to set preview display and export/share output.
    If you then "move rejected clips to trash", it deletes the bits you don't want, but then converts the remaining section into a "mov" file. This is what has been happening to my footage. So basically I can't get rid of extraneous footage (60GB+ of the stuff!) without altering the aspect ratio of my movie. How do I stop this happening?
    Thanks for posting this information. It seems that when the "kept" file segments are copied to the new file container, the aspect flag is not copied. Believe this should be brought to Apple's attention ASAP as an enhancement (or a bug since it does not adhere to aspect flag priority use in main routines). Will run my own test to confirm this and likely post my own feedback report. Suggest anyone else having this problem add their support to get this corrected as soon as possible.

  • Change aspect ratio to letterboxed

    I have a whole sequence in image size 640x480 that is pillarboxed. I want to turn this into a widescreen sequence as i think it's a 16:9 letterboxed. any ideas on how i can do this? I am new to the behind the scenes of premiere pro.
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    I don't understand what it is you really want.
    Your footage is 4:3 using square pixels. (Or is it really something else?) To make it 16:9 widescreen, you would have to chop some off of the top and bottom. Let's say, you would end up with 640X360.
    OK. now you have lost some from the top and some from the bottom and you have a widescreen video. But it is pretty small. Is that what you want? Or did you think you could blow it up to HD?

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    Is there another better way to approach this? Hope my description was clear enough.
    Thanks in advance.
    P.S. Public thanks again to hanumang, whose responses to a previous related thread helped get me this far...

    Hi Steve, thanks for your reply. I did not explain well. I am not planning to put both 16:9 and 4:3 versions on the DVD. What I am doing is using only 16:9 encoded video on the DVD. This is achieved by placing all footage (16:9 and 4:3) on a 16:9 timeline in FCP and encodeing to widescreen using Compressor. When I do this, the footage originally shot in 16:9 comes through unaltered while the footage originally shot in 4:3 comes through with pillarboxing.
    Ultimately, I need widescreen footage to appear unaltered on 16:9 monitors and letterboxed on 4:3 monitors and I need the footage that was originally shot in 4:3 to appear pillarboxed on 16:9 monitors but unaltered on 4:3 monitors.
    Based on the way I am exporting my footage from FCP, if I use a single track in DVDSP and place all the footage on that track and set it to 16:9 letterbox, I believe the footage that was originally shot in 4:3 will get postage-stamped, since the pillarboxing was created by FCP when 4:3 footage was placed in the 16:9 timeline.
    The way I have been ensuring things appear correctly is to place ONLY the footage shot in 16:9 on one tack in DVDSP (set to letterbox) and ONLY the footage shot in 4:3 on a second track in DVDSP (set to pan-scan). They have to be on different tracks to allow for different displlay modes but that is necessary to insure things appear properly on all viewing possibilities.
    Perhaps there is another way to set things up in FCP and export differently? Please let me know if you see another solution.
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  • Please watch and see if you can tell me how to correct the aspect ratio
    This is an unfinished std. def video hence this issue I ran into which is just a fun video for my youth group kids I teach at my church. I am editing it in final cut pro 7 and if you see at about 35 seconds the aspect ratio changes whatever its doing with the picture there.
    I have never ran into this problem before so I don't know if its something I may have selected on the camera accidentally or done wrong in FCP but I shot all the video the same day of course for this event of ours and all the other video is fine an in 16:9 or what was called the "letterbox" option on my Panasonic DVX100B.
    Please help me correct it if you know how. Thank you very much in advance.

    I can't watch the video as well. Not quite sure what trouble your having
    Aspect ratios can be tricky and there are a few spots you can mess them up. First I would check to make sure that your sequence settings are the same aspect ratio as your original footage. I would also make sure your exporting with the correct aspect ratio as well. (If you’re using the quicktime conversion option. Sometimes depending on your settings options like 16:9 are not turned on by default and you need to check them before exporting.)
    Also if you can change the aspect ratio in FCP regardless of your sequence's aspect ratio is. Under your distort tab there is a aspect ratio option. +33 will make your footage 4:3 and -33 will make your footage anamorphic. However this will only stretch your footage. This method is only useful for when you can to place 4:3 footage into a 16:9 sequence without it appearing distorted and stretched

  • Aspect Ratio Issues in Timeline

    This may be a simple fix, may not be. I've searched the discussions, and have come close to an answer, but each topis is just slightly different than my specific issue.
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  • Cannot get 16 X 9 aspect ratio on NTSC monitor

    Just installed a Radeon 9800 pro Mac edition to replace the original GeForce 5200 that came with the computer. The new card is great and gives 30 fps on the main LaCie electron blue 19" monitor when "Full screen" mode is selected. Problem is ... when I select "External video" regardless of the option selected under "Preferences" in "Output" the framerate drops to 6 or 7 fps. The image on the Sony PVM monitor always shows in a stretched 4 X 3 aspect ratio with letterboxing all around it, top, bottom and sides regardless of what option I select in the ATI preferences on the Mac2TV panel. Now when I drag the viewing window from the main monitor to the External Sony PVM monitor and select "Full screen",(external video turned off) the aspect ratio remains in 16 X 9 with an acceptable frame rate.
    Any suggestions out there? Thanks!
    Dual 1.8 (original) G5/2.5gb RAM   Mac OS X (10.4.6)   Radeon 9800 pro Mac edition
    Dual 1.8 (original) G5   Mac OS X (10.4.5)  

    A solution for "Video output"
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    Dual 1.8 (original) G5   Mac OS X (10.4.6)   Radeon® 9800 Pro Mac® Edition 256MB AGP

  • Output aspect ratio

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    Go back to the original file that you exported out of Final Cut Pro.
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  • FCP project not the correct aspect ratio when exporting to Quicktime

    Hello All;
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    Message was edited by: Haberdasher

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