Before going to HD, I have a few questions

[John Beck]

That is great Todd,
Thanks again, will be definetly be asking more questions.

[Richard Herd]

Sorry to get pedantic, but…just to be absolutely clear. The AG-HVX200 is not actually native 16:9. It is native 4:3 with a pixel aspect ratio of 1.33. The actual frame size is 960×720 (960/720=1.33 aspect ratio) and the pixel aspect ratio is also 1.33, so 1.33*1.33=~1.77 (16:9). This matters when making comps in other software, like After Effects or using Photoshop to make titles or Illustrator to make graphics.

[John Beck]

Richard,

Excellent comment indeed. I was unaware of native aspect ratio of the HVX 200. I thought it was indeed 16:9 which is indeed an issue like you pointed out when compositing using any other program like AE, even with tight integration to PPcs3.

Thanks for this input!!

[Shane Ross]

Sorry Richard, you are incorrect. The chips are indeed 16:9 chips…they are 960×540. Panasonic uses pixel shifting technology to get 960×720 and 1280×1080.

Shane

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[Rennie Klymyk]

[Richard Herd] “Sorry to get pedantic, but…just to be absolutely clear. The AG-HVX200 is not actually native 16:9. It is native 4:3 with a pixel aspect ratio of 1.33”

Actually the the HVX chips are 4.6809 x 2.6330 mm active area in size which is 16:9 format.
The common denominator is 3.419

4.6809 X 3.419=16
26330 X 3.419=9

If you shoot in 4:3 you are not using all the pixels on the chips.

“thou can not stir a flower without crumbling a star” ……Henry Wadsworth Longfellow

[Richard Herd]

Thanks guys!

[John Beck]

Something seems to be off a bit..

If the sensor is native 16:9 with a discrete size of 4.6809 x 2.6330 mm, a dimension that correlates to 16:9, I can understand that to arrive at 4:3 a pixel ratio of 960X720 would provide the correct apect but 1280 X 1080 is neither 4:3 or 16:9. Is this not a mistake? Shouldn’t that be 1440 X 1080? That would make the aspect ratio work for 4:3 but is the camera truly capable of this resolution or more importantly,if it’s not, how can it provide 1920 X 1080?

[Jan Crittenden livingston]

[Richard Herd] “Sorry to get pedantic, but…just to be absolutely clear. The AG-HVX200 is not actually native 16:9. It is native 4:3 with a pixel aspect ratio of 1.33.”

Well not be be in your face but it is a 16:9 CCD and not $:3 as you propose.

[Richard Herd] ” The actual frame size is 960×720 (960/720=1.33 aspect ratio) and the pixel aspect ratio is also 1.33, so 1.33*1.33=~1.77 (16:9). This matters when making comps in other software, like After Effects or using Photoshop to make titles or Illustrator to make graphics”

Actually you are talking about the codec and not the CCD at all and it is the pre-filtered size in the compression engine that you are referencing as 960X720. This is the recorded footprint.

Hoping that helps clarify.

Best,

Jan

Jan Crittenden Livingston
Product Manager, HPX500, HVX200, DVX100
Panasonic Broadcast & TV Systems

[John Beck]

Thanks Jan,

So the recording format has an aspect ratio of 4:3(920 X 720)right?