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Posted by George Hammond on 10/11/05 07:17
On 10 Oct 2005 23:09:24 -0700, "platopes" <platopes@yahoo.com> wrote:
>
>George Hammond wrote:
>
>> The "shutter period" in a
>> movie camera is only a small fraction of the frame duration time,
>
> Shutter in average motion picture film camera - 170 degrees. As this
>refers to the *opening*, the image is being recorded for *less* than
>half the time in which the film is at rest in the aperture,(shutter is
>a circle). The smaller the opening,(160 deg.), the sharper the
>image,(less blur do to operater shakiness/vibration).
[Hammond]
The shutter in a movie PROJECTOR is a "propellor" shaped
object less than 10-degrees wide. This means the
film frame is shown for 170/180 = 95% of the film
advance cycle in the PROJECTOR.
>
> I yanked the shutter right out of a super8 camera. -
>
> http://super8wiki.com/index.php/Nikon:_8x_Super_Zoom:_Disassembly
>
> The results can be spectacular. Of course, chidren are not allowed to
>see any of the footage I shoot, not because it's pornographic, which
>sadly it never is, but because I simply enjoy depriving children of
>things. Then again, who doesn't?
>
>> and
>> this is evidenced by the classic "propellor shape" of the rotating
>> shutter in a movie projector.
[Hammond]
the shutter in a MOVIE PROJECTOR is different than the shutter in
a MOVIE CAMERA... as any idiot (except you) well knows.
SEE:
http://entertainment.howstuffworks.com/movie-projector4.htm
where it explains:
The shutter is a small, PROPELLOR-like device that rotates 24 times
per second. Each BLADE of the shutter blocks the path of the light as
it comes to a certain point in its revolution. This blacking out is
synchronized with the advancement of the film so that the light
doesn't project the fraction of a second when the film is moving from
one frame to the next.
> One of the many fallacies which can be stated without fear of dire
>consequences. Nice!
[Hammond]
Typical kook horseshit.
>
> p
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