Barry Green
Forum Replies Created
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[Arniepix] “It’s really just as compressed.”
In theory, sure. But in reality, in an HVX200? Not at all. 1080 ends up being much less compressed, and the visual improvement is significant.
It’s true that the DCT compression ratio is 6.7 for both, but the difference is that the HVX is generating only about 800 lines of vertical resolution — enough to saturate the 720p frame, but leaving a lot of underutilized space in the full 1080p frame. DV/DVCPRO50/DVCPRO-HD compression is smart enough to take advantage of leftover bits from underutilized compression blocks and move them to where they’re most needed. So with 800 lines of detail stretched across 1080 lines of frame size, that leaves a significant portion of underutilization, which gets repurposed to make the overall image look better.
The reality is that 1080 shows less macroblocking and less mosquito noise than 720 does. It gives the appearance of being less compressed, while simultaneously being more detailed. 1080/24p and 1080/25p and 1080/30p are better than 720/24p, 720/25p and 720/30p in all ways (except file size).
Now, 720/60p vs. 1080/60i, sure, 720’s better for that. But at equivalent progressive frame rate, the HVX just looks notably better in 1080 than it does in 720.
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P2CMS on the Mac requires FCP to be installed before HD clips will work. If you’re using it on a Mac that doesn’t have FCP, that would explain it.
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1) the HVX can’t power an external drive, so you have to make sure that the drive has adequate power.
2) in FCP6 it’s called “log & transfer”, in earlier versions it was “file->import->Panasonic P2”. Go to “log & transfer” and it should work.
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[Clint Nitkiewicz Hernandez] ”
– closer look to film.”
Not true.[Clint Nitkiewicz Hernandez] “- more of the dv blur, even after the 2:3:2:3 pulldown, so looks less like film.”
Not true.
The rest of your conclusions are accurate, but I don’t know where you’re getting this part from. 1080/24pA (after pulldown removal) looks and moves and feels exactly like 720/24pN, except it’s larger, sharper, and less compressed.
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[Clint Nitkiewicz Hernandez] “But shooting at 1080 at 24pa, will that give you a better film look than say 720p, after I do a 2:3:2:3 pulldown in fcp?”
The “film look” will be identical, but the 1080 footage will be sharper with less compression.(and take up 2x as much space on the hard disk)
[Clint Nitkiewicz Hernandez] “I simply dont want to sacrafice the fluidity of 24p (native) so I can earn extra pixels, but if you can have both, great, thats my goal,”
Then you should be thrilled with 1080/24pA, because that’s what you get.
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PCMCIA is potentially significantly faster. On my laptop I can transfer an 8GB card in about 5 minutes, a 16GB card in about 9 minutes. Firewire transfer isn’t quite that fast. FW800 through a PCD20 slot reader would be, but regular firewire from the camera isn’t as fast.
And as Bob points out, when using firewire transfer you have to tie up the camera to do it, whereas with PCMCIA transfer you don’t have to tie up the camera.
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You mean 1394 Device mode? Or live streaming? Live streaming is no problem, but 1394 device mode is not supported in Windows; at least, Panasonic says it’s “not guaranteed” and they recommend you use USB in Windows.
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The difference between 1080 and 720 is not insubstantial. It’s not night-and-day different, but it’s certainly enough that I choose 1080 every time unless there’s a compelling reason to settle for 720.
>>DVCPRO HD is a very compressed form of HD.<< So's the F900's HDCAM... 😉
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Hold the button down until the “PC MODE” light comes on.
And that DV9000 *might* work with the duel adapter and P2 cards if you always write-protect the cards. I’ve heard that can sometimes make it work.
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I doubt that would work; no USB adapter works as the adapters have to be specifically engineered to work with P2 cards.
But if it would work, that could be a $250 option for FW800 importing of cards. Steve, you feel like “taking one for the team” and ordering the PC Card option to see if it’d work? 😉