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Posted by David McCall on 01/30/06 18:34
"Martin Heffels" <mitch.mcNeilljn@sprint.ca> wrote in message
news:6bfst1h931nhut3u6afienq99mpi1qupf9@4ax.com...
> On Sun, 29 Jan 2006 18:50:08 GMT, "David McCall"
> <david.mccall@comcast.net>
> wrote:
>
>>You see, I wouldn't think compression would have anything
>>to do with it either, but I think it is the compression that make
>>Ty reject it as an HD format.
>
> Also in reference to Ty's answer to you, his worry is the stacking of
> compression-errors, which indeed can happen very quickly on a highly
> compressed format. But that doesn't make HDV not a HD-format. HDV is in my
> opinion (YMMV) perfect for ENG-work, documentaries, simple short/long
> features, these kind of things which don't have a long post-production
> path, and go straight to DVD or broadcast (no film-outs).
> Of course, with treating the material well, you can push HDV further, but
> I
> reckon this will take so much time that it might work out cheaper to rent
> a
> decent HDcam.
>
Absolutely. Multiple recompression is a problem. In fact it is the
very reason that many refuse to accept DV as a profesional format.
If you have control over how the footage is shot, how it will be edited,
and where it is going to go after you edit it, then I don't see so much of
a problem with HDV. Of course it isn't as good as uncompressed out
of a $100,000 camera, or even the 7:1 compression of HDCAM.
Just as DV has found a market, HDV will also find a market. The
MPEG-2 compression complicates editing, but it also allows for
some pretty stunning imagery if you work within the limitations of
the medium, and limit the amount of recompression.
If I had to buy a camera today, I might not go with HDV. The HVX-100
has a lot going for it. It records to overpriced P2 memory cards instead
of tape and has fairly light compression as compared to HDV. Some
claim that shooting to memory cards will change your life. Being able
to easily scrub BAD takes and having the pre-record feature is damn nice.
IIRC the cards are essentially 4 2gig SD cards in a Raid-0 configuration.
You get to have 2 cards in the machine and video will be recorded on
one card until it is full, then switch to the other. You can then pop out
the
full card and dump it's data to a hard drive and continiue on. The choice
of formats is pretty incredable too.
Excelent pre-release review of HVX-200
http://www.dvxuser.com/articles/HVX200/
Reviews of Several low priced HD cameras
http://www.urbanfox.tv/articles/cameras/c33hdv_review.html
Footage from HVX200 with slo-mo cheerleaders (recompressed to MPEG-4)
http://www.stickypod.com/stickypod_upload/uploads/720p-bball-half.mp4
Reference to above video, and a lot more information
http://www.filmdailies.com/index.php?tag=720p
Comparison of SONY HVR-Z1 and JVC HD 100, There is a table that shows;
SONY HVR-Z1=1440 X 1080, 40:1 INTERFRAME
SONY HDCAM=1440 X 1080, 7:1 INTRAFRAME
JVC HD 100=1280 X 720, 40:1 INTERFRAME
http://www.jvcpro.co.uk/getResource2/high_definition_gy-hd100.pdf?id=6063
There is a lot more information, but this is enough to start
Google "HDV JVC Panasonic P2 Sony HD compression 720 1080" for more
David
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