How much could you alter the film if Abraham Zapruder had shot in slow motion mode?

[David Josephs]

If you speculate that the anomalies are caused by film editors alternating the pattern of deletion ( o x x, x x o ...) you could detect that by the motion of the limo against the background.

Thanks for your description, Drew.

If one shifted the pattern of deletion over time
(o x x, o x x, o x x, x o x , x o x, x o x, x x o, x x o...etc) over the course of hundreds of frames rather than the eight I show here, could you smooth out the motion and lower the chance of detection by comparing it to the limo against the background? I know that people have speculated about the actual running speed of the B&H camera as Zapruder was using it over the 26 seconds, how tightly it was wound, etc.

Also, would you discount the slow motion mode out of hand, or is it possible it could have happened as part of a larger alteration scheme?

Not trying to debate whether it happened that way, or even if it was altered at all. More trying to learn if it *could* have happened that way, if someone was trying to alter it.

I happen to agree with you 100% Chris and have written about it extensively.

I disgree with Drew's analysis for the following reason: we know for a fact the limo did not travel at a uniform rate of speed thru the Elm turn and on down to the headshot (all you need do is watch the film backward on the Quicktime version and you can see much more clearly the slowing and constant rates of speed.

There is also the little fact about Hill catching the limo - another subject I've written alot about. It's not possible for Hill to cover the distances necessary in the number of steps he takes if the limo is traveling at 11mph.

In fact, the math resulting from the analysis of the CE884 legend shows the limo traveling at less than 3mph from extant Z150 thru Z180 or so.

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More importantly is the process... with 486 frames at 18.3 fps we have 26.557 seconds of film... now at 48fps we'd have 1275 frames.
The camera did not have an 18fps speed but 16 and 48 - even the men at NPIC that weekend could not understand the 18fps speed used.

1 2 3 4 5 6 7 8 9 10 11 12 is the 48fps sequence

48/18.3 = 2.62 ratio. So we need to remove 30 to 31 frames per 48 frame sequence or divide by 4 and it's 7-8 frames per every 12.

If I only took out the 2nd and 3rd frame of each 3 frame set we'd have frames:

1 - 4 - 7 - 10 at 16fps which produces a normal looking movie (I've had friends take a 48fps film and do just that - it look amazingly like the Zfilm)

Now take these 4 frames and film them in sequence on the B&H camera at 16fps and we have 1/4 of a second of film, without breaks or splices and an intact sproket area which shows exactly what's needed in that area
(I believe this is from one of the Zavada studies but again I may be wrong - so credit out to who it's due)













Cutting 1275 frames to 486 is what gave us 18.3fps and then they worked backward.

The areas of the film which do not have sprocket images are explained by breaks and missing frames replaced by one fo the copies which did not copy over the sprocket images - hence the black in that area.

These are some incredibly coincidental location to have breaks in the film Drew and would explain some of the larger removals of film.

The first "break" is within frame 157 and is NOT suppose to represent missing frames yet if we look at JFK from frame to frame he has turned his head from looking one direction completely around the other.
You can use 154 to see him more clearly looking to his left



Then 207 thru 212 - at a place many believe he was hit with a shot and the sign just happens to be in the perfectly wrong place. (see last image at bottom of post)

The next is not on this collage since there is not blackout of the sprocket area - it is simply Greer turning faster than humanly possible


Noel Twyman performed experiments with young healthy prepared men and they could not turn in the 1/9th of a second which is represented by these 2 frames

It is alos at a point where both the foreground and background are in focus suggesting to many the stopping of the limo

The next is similar in that there are no bars but frames are obviously missing as the limo goes from Stopped to going - this is 315-317





And finally just after extant 340 and 349. The "Original" film is in 9 pieces adding to more than 45 feet of film on a side which only holds 30 feet of film with leaders.
There is also no 0183 found on the "original"...

It was claimed that 19feet of film was run off after the assassiantion footage to end the reel. I don't think that happened and am working on a paper to prove it.

Stand by your guns Chris. Here is the film of a 48fps cut down to 16... looking a lot like the extant zfilm without the stabilization and color correction... (This is not my gif yet I canot remember if it was Gerda or someone else - all the other images are mine)