Uncompressed hvx200a / hpx170 / hmc150 files?

Blackout

Veteran
I think this has been discussed before but I couldn't find it. Are there any places to download full quality uncompressed (or at least not further compressed) mxf files of hvx200a & hpx170 footage, and hmc150 mpeg4 files?

I am making a purchase for a project very soon and the client wants to really examine the differences from these 4 cameras in 1080p mode. Vimeo is what is mostly up and it adds a lot of compression noise and is only 1280 / 720.

Thanks
 
I would suggest renting or borrowing each of these cameras and putting them through a series of tests that match the project you will be working on. You really don't know what you are getting when using another shooter's video (lighting, scene file settings, shutter, etc.).

Just a thought.

Jim
 
He's not referring to pixel shift, he's talking about the prefiltering of 1920 down to 1440 (or 1280) on DVCPRO-HD, vs. full-raster 1920 on the AVCHD.
 
Why do you suppose Panasonic didn't put variable frame rates into the 150? Was it for technical reasons, or to keep the 150 out of the 170/200 territory?
 
I've watched projects with the 200a and 150 cut together and I don't see how anyone can tell them apart regardless of the specs.
 
I personally was able to do a comparison a while ago and I thought that the hmc150 was fairly sharper in 1080p than the hvx200a when I saw it.. but again that was a while ago and now I am questioning my sanity. The avchd codec makes me feel queezy though. If you make a blu-ray disc, does it play the footage naively or re compress again?
 
Interesting... so if you edit it natively in Premiere CS4 then make a blu-ray, you are not re compressing anything? Except transitions I guess. I have a fairly beefy quad 3.2 i7 machine but have heard horror stories of editing avchd.
 
I don't know whether CS4 can export footage directly back out or not. What I'm saying is you could copy your original footage onto a blu-ray disc and the blu-ray player could play it.

AVCHD is very computationally intensive. If you have an nVidia CUDA graphics card, at least on Windows, it accelerates it to the point where it can seem like you're working with DV. The more powerful card, the better.

But if you don't have an accelerated graphics card, you're gonna be in for some slow playback.
 
What then goes out HD SDI port when shooting with the HPX170?

Is it a full raster output or is there pixel shifting?

I thought it was full raster, but if recorded to p2 then a 960x540 record?

It must be Friday, because I'm not (as usual) thinking straight.
 
If your issue is focused into the detail of optical resolution, drop all of the Panasonic handy cams including DVCPro HD, AVC-HD workflow.

Under $9,000 line-ups for 1920x1080i/p, only sony xd-cam(EX-1, EX-3) is the only answer !!!! It gives ultimate optical resolution and be clear as crystal matching to 1920x1080i/p as I have had experienced.

but.. If your issue is to just compression artifact noise, take choice on hpx-170 which supports HD-SDI output connector (main diference with hvx200a).

Remember, once restored in Storage in HD-CAM, all clips were compressed (maximum 100Mbps on DVCPro100). Thus there is no point in obtaining clips uncompressed with pre-compressed source on Storages (P2 card, DV-Tape, CF Memory, SxS cards, etc....)
Because of storage bandwidth issue, there is no technical method to store horrible uncompressed datarate in to portable media for now and for a time.

Finally, if you avoid compression artifact ultimately, it's the only methods to commit HD-SDI uncompressed capture while realtime shooting....
 
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