Eleventy
Forum Replies Created
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And not forgetting that a P2 card is actually nothing more than a container with an industry standard PCMCIA-connecter. What it contains is not important. At the moment it’s a bunch of SD flashcards, but if a better/bigger/faster technology comes along, there’s nothing stopping Pana putting it in a P2-card, as long as it fits in the container. Your camera doesn’t care if it’s sending its data to SD-cards, somekind of nanotube memorymembranes or fermented cowdung.
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At IBC there was a ‘wooden’ HD version of the SPX-800( the ‘big’ P2 cam)
Release date: ‘mid 2006’
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With tape, the media is dirt cheap( a string of tape), and the recording/playback hardware is very expensive( rotating drum, multiple heads, servo systems, capstans,…
With P2, it’s the other way round: The media are expensive, but the record/playback hardware is dirt cheap: 1 ( one) industry-standard PCMCIA connector( < $1,-)
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I’m pretty sure you need the -optional- card for creating proxy video. The idea behind putting it in a separate card, is that you can upgrade the thing if newer/better proxy-codecs come available.
So, I think the Kahunas are wrong. However, frankly I don’t think you need the proxies. If you’re using Sony’s XDcam, you need the proxies because the xdcam is damn slow. The only way to get a bit of decent workflow is to transfer the proxies, edit, and then batchcapture the hirez images. You can’t work of the disks directly unless you use the XDcamplayer as a traditional VTR.
The P2 on the other hand is so fast( approx. double of a Harddisk), that you use the hirez directly from the card. No messing about with lorez. No importing, no capturing, …
The only use for proxies for P2 I see, is for giving a lorez copy on a SD-card, to a script-girl / director / … so they can watch the stuff at home.
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It probably means you have no in and out points selected in your source window
As with classical VT-editing, you have to put in’s and out’s on both the source and target tape
( in this case source and target window) -
Forget lassoing. The avid way of thinking: use In and Out points
activate all tracks( V1 A1 A2 ..
Press ‘end’ to go to the end of the sequence.
Press ‘o’ to mark an out-point.
Go to the spot you want to move. Press ‘i’ to mark in.
The whole part is now purple.
in your source monitor mark in and outs.
Insert( not overwrite) the shot with ‘v’ -
300Gb drives are 3.5inch desktop drives.
The 60Gb drive is a 2.5inch notebook drive.
They are more shock resistant, require less power, are smaller, but less Gb.A month or so ago the 100 Gb notebook drive was released, so expect a 100Gb version soon, and even larger versions later.
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[Rainer Wirth] ” I used material shot on Digibeta 16:9, using maximal 2 layers on DVCPro25 and rendered it with DVCPro50 codec. From there I made DVD’s. The film doesn’t show any quality loss on DVD. I think it’s important to shoot on 2/3 Chip, real 16:9 with proper lenses. Whether 25 or 50 or HD, if it comes to DVD with max. 8Mb/s the difference is not visible.”
The source material I used was CGI, and very hard on the Codec( on purpose). It was kind of a worst case scenario. Natural shots are generally much less demanding( less high-contrast sharp divides, less color saturation in adjacent parts), so they compress much beter. In fact, DCT compressions make use of insensitivities in the human eyes towards natural images( not CGI).
When you ‘downgrade’ towards DVD in the end, you throw out a lot of detail( DVD is not such a high quality, contrary to what salespeople try to make us believe), so it doesn’t seem to matter in the end. It doesn’t in the end, but it does matter in the beginning, acquiring ( Why else would you use Digibeta), and in the middle: Post, compositing.
I am planning to do a similar test next week or so, using ( natural) material shot on a P2 ( the SPX-800), a XDCAM ( Sony IMX and DVcam), possibly a Ikegami, and Digibeta. That is, if I find the time.
eLeventy
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[Luis Caffesse] “I wonder if you could render out some DVCProHD results so we can see how the higher compression & resolution will compare with the DVCPro50 results.
In fact, the thing I’d be most curious to see is an uprezzed DVCPro50 side by side with a DVCProHD test.”
Kinda difficult. My system( Avid Xpress Pro) only does SD. So uprezzing this way is a nono. Would have to get my hand on the codec, and do it another way.
Doing it by math gives the following:
( if we compare 786×576 SD to 1920×1080 HD PAL)
Image is 186% larger.
4.5 times more pixels ( 0.44Megapixel to 2.07 Mp)So roughly:
We have 4 times more pixels to fill, with only double the bandwith ( compared to DV50)
or, compared to DV25: 4xpixels with 4xbandwidth.If my math is correct: the HD gets the same amount of data per pixel as DV25 ( in 1080i),
so quality should be similar to DV25, but in HD. Math will differ when using other HD( 720p, …)( which leaves room for a future DVCproHD+ / DVCpro200 😎
eLeventy