Aroon_Narayanan
Well-known member
This software should make it easy for anyone with a P2 workflow to edit AVCHD.Panasonic has a free application on there P2 Support desk site that will encode your AVC HD file to P2 HD.
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This software should make it easy for anyone with a P2 workflow to edit AVCHD.Panasonic has a free application on there P2 Support desk site that will encode your AVC HD file to P2 HD.
hmm. if the chips are the same, then what is all the hype in the press releases about 'full raster' from the hmc150?
Between the 200A and the 170, I'd recommend the 170 to everyone unless you have a specific need for that DV tape drive.
Between the 150 and the 170, they don't make the choice easy. It's largely the same hardware, but the features and the recording format are very different, making the pricetag and workflow very different.
Both have the same lens, same chips, same DSP, so the raw image should be very much the same. But the 170 is geared toward the professional user, recording DVCPRO-HD onto P2 cards and supplying a locking 6-pin firewire port and an HD-SDI connector. Plus the 170 does variable frame rates, and it does standard-definition too.
The 150, on the other hand, seems more set up for the event shooter, the prosumer, the wedding shooter, the budget producer, etc. Same core image, but it records onto inexpensive commodity SD cards instead of P2, and it uses HDMI instead of HD-SDI, and it doesn't offer standard-def or variable frame rates. But, it costs at least $1500 less, and its recording media is much less expensive, and it has a scalable codec so you can get extraordinarily long recording times (on a 32GB SDHC card you could actually record for 12 continuous hours).
Then it comes down to the recording format. DVCPRO-HD is an established broadcast standard. AVC-HD is the "new DV", the replacement for HDV, sort of a super-HDV. It uses very low bandwidth (6 to 24 megabits, vs. 40 to 100 megabits for DVCPRO-HD). It's also 4:2:0 color sampling, vs. the superior 4:2:2 of DVCPRO-HD. And it's long-GOP, vs. the discrete frame-based nature of DVCPRO-HD. But, on the other hand, it's an extremely efficient codec, it's the latest codec technology (H.264), and it does record full-raster images (1920x1080 and 1280x720).
On a pricetag basis, for the struggling indie filmmaker who can't really afford much at all, the HMC150 will probably be a lot more appealing. For the pro who needs the flexibility and performance of the P2/DVCPRO-HD approach, I don't think there'll be much question at all, the HPX170 will be preferred.
Long-GOP can cause serious artifacting in HDV/MPEG-2, and I would expect similar issues when using low-bitrate AVC-HD. However, since AVC-HD is so much more efficient, it might not be bad (or, it might even be perfectly fine) at the higher bitrates. We don't know yet. Sony says that 9 megabits of AVC-HD is equivalent to 25 megabits of HDV. I would expect that 24 megabits of AVC-HD should be equivalent to 35 megabits of XDCAM-EX. We simply don't know enough yet to be able to judge what the real-world performance is, but I would feel confident enough to say that 24 megabits of 720/24p will probably be exquisite with no motion artifacting. Not sure yet about 1080 mode; 1080p should be a lot more solid than 1080i (same with XDCAM EX); I bet 1080/24p will be just fine in all but perhaps the most demanding cases. But that's assuming using the highest-quality 24mbps mode; if you lower your bitrate, all bets are off. I bet you can force some nasty artifacting out of 6mbps footage!
Perhaps the biggest question to answer (as alluded to here before) is in editing. DVCPRO-HD is extremely well-established and extremely edit-friendly. AVC-HD is extraordinarily processor-intensive, and isn't supported in very many editing applications yet. For those who are comfortable with using an intermediate-codec approach (like early HDV adopters had to) then this may not even be an issue; iMovie transcodes AVC-HD over to AIC; FCP can transcode to ProRes, and EDIUS can read the files natively or transcode to Canopus HQ codec. Vegas has some support for AVC-HD but it only really has comprehensive support for Sony camcorders; Canon and Panasonic support is hit-and-miss over there. Panasonic provides a free tool to transcode AVC-HD over to DVCPRO-HD MXF files, so any program that supports P2 editing could then edit AVC-HD footage.
The upside of AVC-HD is in tiny file sizes, which makes it easy to store on cheap memory and it doesn't take up much space on your editing system (in native mode). The downside of AVC-HD is in the editing, and if you have to transcode to another editing codec, be prepared for your files to take up huge amounts of space; ProRes is something like 170 megabits, isn't it? That means your files will grow in size by a factor of 8 to 10 times as large when transcoding.
Editing support is expected to be much stronger in the next revisions of the major editing apps (FCS3, Adobe CS4, etc). But right now, today, the editing aspect is something to research because it's not nearly as well-supported and simple as DVCPRO-HD MXF editing is.
Yes. You'd have 4:2:0 worth of color space, but carried in the 4:2:2 codec.When converted to P2 HD, does the file then have 4.2.2 color space extrapolated from teh 4.2.0 original images?
Your computer can handle DVCPRO-HD just fine, but your software isn't able to support P2. If you went with an HVX or HPX170, you'd have to "capture" the footage off the P2 cards using firewire, just like it was tape.Thanks barry, this is EXACTLY what I needed to see to make my choice. Not going to be easy. The only question I have is that I have a 3 year old PowerPC G5 with 3 gigs of RAM and FCP HD 4.5. Will this cause any issues in editing in either format? I really don't want to spend another 3 grand on a computer.
Any way you slice it, you're getting pretty long in the tooth with that hardware and if you want to play with the big leagues, an upgrade is probably going to have to figure pretty highly on your list. Forget spending 3 grand though, you can get a functional "clone" system that'd probably blow away the G5 for under $700. Core 2 Duo, etc.
FCP HD 4.5 does not support DVCProHD
You'll need to move to FCS2. That software will run on your computer or an Intel Mac.
However, I don't believe your video card will support Color, and Motion won't run smoothly