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-   -   xh-a1 recording size. dumb question (https://www.dvinfo.net/forum/canon-xh-series-hdv-camcorders/140226-xh-a1-recording-size-dumb-question.html)

John Cambell December 23rd, 2008 10:56 PM

xh-a1 recording size. dumb question
 
This is probably a dumb question, but I just read that the xh a1 records 1440x1080. Ive been importing my footage to final cut pro and I see that its all 1920x1080. Is this a big mistake. Should I be importing my footage as 1440x1080?

Richard Hunter December 24th, 2008 04:52 AM

Hi John. I don't know if FCP has any strange ways of handling HDV, but in general, it is best to keep it in native resolution, 1440x1080 until final render. Then you can make it 1920x1080, 1280x720 or any other size that you need for your particular delivery method. That way, you only go through one resizing step.

Richard

Patrick Myers December 24th, 2008 10:58 AM

Check what preset you are using to capture the footage. If you have a different prestet selected in FCP then the footage might save itself in a different format.

Battle Vaughan December 24th, 2008 12:48 PM

Just use the appropriate HDV timeline setup --1080 60i (usa) or 50i (pal) depending on which your camera produces --- and final cut will handle it. When you output with Compressor or Quicktime, you can select the output resolution you want. The thing about 1920 vs 1440 is that HDV handles the width with non-square pixels which interpolate to 1920 on playback. Final cut handles all this, nothing to concern about -- if your clips import without needing to render (grey instead of red line over them) your setup is correct. Edit away, output what size you want. Our workflow here is to output a full-res quicktime movie and then compress for the web at 480 x 272 for the web...that way we have a full-size archive file and the web-sized file as well. / Battle Vaughan/ miamiherald.com video team

John Cambell December 24th, 2008 11:29 PM

Ok so I set my capture preset to apple prores 422(HQ) 1920x1080 at first and captured some footage with it and it looked fine. Then I read and saw that my camera (xh-a1) records at 1440x1080 so I captured the same footage at apple prores 422(HQ) 1440x1080. Again the footage looked fine but when I went to the capture scratch folder and right clicked and pressed get info, it said the dimensions were 1920x1080 not 1440x1080. Then I found some older footage that I uploaded using HDV preset that was 1440x1080 and opened it using quicktime and also opened a 1920x1080 clip using quicktime and compared them and it seemed like there was barely a difference in size. It definitely didn't look like the dimensions were correct to each other. This is really confusing me. Does anybody have any answers?

Jerome Cloninger December 26th, 2008 11:11 AM

John, 1440x1080 with a pixel aspect ratio of 1.333333:1 is going to show up the same as 1920x1080 with a pixel aspect ratio of 1:1. Either way will work fine........

Battle Vaughan December 26th, 2008 01:00 PM

I'm curious, I thought ProRes was an intermediate codec used, for example, in transcoding avchd to something FCP could edit. There are easy-setups for HDV in all it's flavors--we use the "1080 60i with the Sony firewire in" setup and never worry about 1440 or 1920, as FCP just takes care of everything. But, makes me wonder, is there an advantage to ProRes or AIC for that matter, that we should consider? /Battle Vaughan/maimiherald.com video team


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