On Fri, 15 Sep 2000 17:37:00 GMT, hdsq@my-deja.com wrote:

>I share your sentiment on the still aspect of the camera.
>But I do need to use the progressive scan for my application.
>I need to capture at full frame resolution at 15 frames/second or
>faster. We have been using the Sony TRV900 with good result, and
>upgrading to VX2000 for improved image and sensitivity. Both of them are
>supposed to capture progressive scan at 15 uniques frames/second, not a
>full 30 frames/second.
>
>The problems seems to exists every other frame. On the TRV900, the
>camera duplicates each frame to produce 30 frames/second in progressive
>mode. As I have said, this is fine for our application. On the VX2000,
>every other frames are fine, but the frames in between are garbage (not
>a duplicate of the good one). The even frames have a slight vertical
>offset with respect to the odd one. As a result, you see image jitter
>when the video is view on the monitor.
>
>One more interesting tidbit, the problem only manifests itself through
>recorded video. The live video itself is fine in both progressive or
>interlace video.

I did not find this - with my two VX-2000s, the picture
is equally jittery in PS mode on tape and direct-viewed...

>If you could try a short experiment, I would really appreciate it.
>Please shot a static scene (containing a lot of horizontal and
>diagonal edges/lines) with the tripod mounted on a sturdy tripod. Put
>the camera in progressive mode and record about 30 seconds of video.
>Play the video back and see if there is jitters. They are very visible
>near the horizontal and diagonal edges/lines.

I tried this this morning - with the camera VERY still,
and AF and zooming not used, the picture quiets.

>I am trying to decide whether to return or exchange the camera.

I think it is normal for the VX-2000, but it may not be
suitable for your use. I much prefer the 2000 to the Canon
3-chippers for most uses, but for your particular needs,
an XL-1 or GL-1 may serve better (I know where there are
two GL-1s in good shape available used, if interested),
and I assume these have 30fps PS mode...

>> My two VX-2000s do the same when held "almost" steady...
>> But, then, I have never figured out the appeal of
>> progressive-scan mode for anything but still-image
>> capture - and, why use a big/heavy/expensive camcorder
>> for that when a mid-line Kodak digital-still camera
>> will produce a far better still image at a fraction
>> of the price? (I never bothered to unpack the
>> stills-related gear for my several camcorders that
>> come with it since 640x480-resolution stills aren't
>> worth a whole lot to me...) Forget non-interlaced
>> video - this is an interlaced medium at present
>> and motion is better-rendered interlaced for TV
>> viewing (and if you make 320x240 video for
>> computer-viewing, you just drop every other scan
>> line for a non-interlaced image...).