Re: Canopus ADVC300 Issue/Question (too long answer :-)


"Martin Heffels" <mot@xxxxxxxxx> wrote in message
news:0s2v42hpdnr739jv3q5pbndc1ojjs5ibs7@xxxxxxxxxx
On Wed, 26 Apr 2006 14:56:27 GMT, "David McCall"
<david.mccall@xxxxxxxxxxx>
wrote:

The low frame rate is compensated for by the
natural motion blur. Anything that moves in film gets blurry.

Video has almost the same amount of motion-blur, because it shoots a
similar speeds. Unless of course you tweak the shutter-speed.
So film has no particular advantage over video in that regard.

Well sort-of. If you are talking about those new fangled video cameras
with their CCDs, then yes. Especially if the camera does progressive,
and you have the shutter set low enough. However if your shutter rat is
running above 1/60th then the motion blur will be reduced. Unless you
intervene, I think most cameras use the shutter speed to adjust exposure,
so if you are shooting in daylight, then the shutter rate will likely be
much
shorter than it typically would in film. Some of these new fangled chip
cameras even have the capability to have shutter rates that are much
slower than the frame rate. You can get lots of motion blur that way :-)

If we are talking about the old days when the cameras still had tubes,
then this may not be the case at all. The "exposure time" is extremely
short. Any given point on a line of video is only being exposed for the
amount of time it takes for the beam to cross over that point. There is
some lag inherent in the target of the tubes, but not enough to make
much of a motion blur. Perhaps some tube had more lag than others
(Videcons for instance).

David


.

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