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Posted by Spex on 11/01/07 17:32
PTravel wrote:
>
> "Smarty" <nobody@nobody.com> wrote in message
> news:J9aWi.29875$eD3.26430@trnddc03...
>
>> Looks like nappy is beginning to get tempted...... I am anxious to see
>> how you and the other true professionals here find this camera, since
>> I judge image quality and other related performance mostly as a
>> non-professional user.
>
> As everyone here knows, I am far from a professional, either in skill,
> experience or knowledge. However, I've hit a significant problem with
> the HV20 that may result in my returning it.
>
> Short version: there are significant motion artifacts in high-frequency
> detail, not unlike what you see with a Bayer-filtered single-CCD SD
> camcorder. The problem is dramatic on the camera's HDMI output, far
> less visible on component out. I'm still trying to figure out whether
> it's caused by over-sharpening in the camera, lousy HDMI circuitry, or
> something odd with my television.
>
> I've discussed it at length here:
>
> http://www.dvinfo.net/conf/showthread.php?p=768436
>
> Since these videos are for my own personal use only, I may keep the
> camera as long as it looks good on the component output. However, I'm
> going to do so more tests this weekend. If the output continues to
> display these signficant high-frequency motion artifacts, I'm returning
> it and waiting until next year to buy either an AH1 or FX7.
>
> I'm really disappointed -- I had high hopes for this machine.
Without seeing the artefacts it is impossible to say with any accuracy
what they might be. But,as you know any "over" sharpened details in an
image will eat up bandwidth like it is going out of fashion so it could
be an artefact of the HDV encoder. Reducing any in-camera sharpening
will assist a bit-starved encoder.
Can you confirm these artefacts are actually in the captured clip? Are
they visible in your NLE when you step through the image? If not it
might point towards the HDMI and component outputs of the camera or your
TV. Is your TV full HD? If not this could be an artefact of a very
poor resize and combined with any over-sharpening could be causing line
twitter.
Post a raw .m2t (not a recompressed one) somewhere and I'll take a look.
I have a XH-A1 and have not seen anything like you describe.
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