Posted by Scubajam on 01/11/28 11:58

Any compression method of storing has loss. For best quality, stay
with miniDV or DVCAM tape format cameras. Both the harddrive and DVD
versions will sacrifice quality for convenience. From what I've heard,
even storing at the best quality will result in some artifacts if you
are critical. While true that even miniDV does some compression, at 13
gig/hour it's close to lossless.

That said, I'm now shooting HD 1080i with a Sony HVR-A1U and am getting
some pixelation when panning if I'm not veeerrrrryyyyyy slow. This is
a known issue with HD. Of course, HD is definitely compressed - at
25000kbs, much more than any other format, and it stores at mpg2. But
this isn't about HD.

Tell your friend to pan very slowly, or switch to a miniDV camera. And
still pan slow. Speed it up in post if needed.

Jim McGauhey
Washington State



les wrote:
> Hello....
> A buddy of mine who uses his cam for P.I. work has recently switched
> to a Sony DCR-DVD105 camera and complains that the playback
> image seems to "stutter" and has noticeable aliasing artifacts when he pans.
> I haven't seen this myself, so I'm going on his description.
> I thought about the possibility of an "I" and "P" conflict depending on the
> device he watches for playback, and even when he views on a good NTSC
> monitor and desktop DVD player, the stutter remains, as does the alias
> issue.
> I don't know what else could be wrong, but the notion that perhaps the
> codec can't fully implement the compression adequately, or the CCD has
> become the bottleneck perhaps in the alias problem is all I can think of.
>

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