Proof that the Zapruder film is authentic
One of the central arguments in the book Assassination Science is
that the Zapruder film is not authentic. Various researchers argue that
frames had been cut out for some conspiratorial motive. On pages 310 to
315 Dr. Mantik discusses the strange ghostlike images in the sprocket hole
area. He does not know what caused them and suspects that they indicate
tampering. Balderdash. To date, no one has correctly explained what those
images are and how they were created. For many years I have puzzled over
them and discussed them with other researchers, but never reached a firm
conclusion due to the very poor quality of the Zapruder film versions we
have had. Now MPI has released the original Zapruder film with the
sprocket hole areas intact. Within 5 seconds of viewing this new videotape
release of the Zapruder, I knew instantly what the sprocket hole images
are and exactly what caused them. You, gentle reader, will be among the
first people to learn the truth. Since the publication of this article
this summer I have received positive feedback from Internet readers which
has allowed me to figure out what more of the ghost images are. I have
revised and updated this article from this point to reflect the new
information.
The Zapruder film proves itself to be authentic. There is no
possibility that any frames could have been cut out of the film. Every
time a frame was exposed, part of the background scene was exposed onto
the next frame and the previous frame in their sprocket hole areas. The
ghostlike images in the sprocket hole area are double exposures. Real
objects faintly visible. The cause is the particular design of the inner
workings of the Bell & Howell camera. When a frame is being exposed, there
is an aperture plate which covers the frames above and below the current
frame so that they do not get accidentally exposed. Some 8 mm cameras
leave open the sprocket hole area of the current frame, which allows
information to be recorded there, but that area is normally not projected.
Some 8 mm cameras have a notch in the top of the aperture plate where the
claw finishes its stroke when pulling down the next frame. Bell & Howell
designed the aperture plate to use a groove in the middle of the aperture
plate instead of a notch at the top. The illustration on the left is from
a standard reference on film making which shows what an aperture plate
looks like with a typical notch. The illustration on the right is what the
aperture plate would look like if the notch had been changed to a groove.
I also suspect that the corners are actually rounded instead of sharp.
After exposure of the current frame, the claw grabs the current frame's
sprocket hole and pulls the current frame down to bring in the next frame
http://home.comcast.net/~the-puzzle-palace/zapruder.htm
http://www.youtube.com/watch?v=bzHKAzvO4tY
http://mcadams.posc.mu.edu/looking.htm