20-08-2013, 08:51 PM
This is my first post on this forum, so as a quick intro: I have been working with Len Osanic this past year on the 50 Reasons video series. I've been fairly immersed in the assassination and related issues and I've referenced this and other forums through the year. I've developed some opinions related to this particular thread so thought I'd hop on. Beyond the assassination I have great interest in many parapolitical topics, and, for example, try to read anything by Peter Dale Scott and also think the Levenda "Sinister Forces" trilogy is outstanding.
I think the limo slow down is visible in the Zapruder film, most clearly in the frames after the vehicle has passed Hill and Moorman. What hinders the recognition is that the background is mostly green lawn without any other figure to serve as a referent. Once I first noticed it, the limo slow down is apparent every time I see the film - but I do not know the degree to which this is a subjective observation (that is, not everyone may also see it).
Thoughts on Zapruder film alteration: I lean towards the authenticity of the Zapruder film. I have worked with aerial optical printers, the equipment necessary for alteration, including with 8mm film, and in my opinion the claims of complete alteration - whereby people, signs, etc have been added and subtracted within the frame - are impossible. The 8mm frame is too small to do that work, and the generational loss would be too obvious. A simple rectangle matte within an 8mm frame is a challenge. However, alteration involving the removal of frames is possible - although it would result in a generational loss and, because of the size of the 8mm frame, generational loss would become visibly noticeable by the second pass.
Some movements within the Zapruder film are indeed extremely quick. This might be the result of frame removal, but an alternate explanation can be found in the mechanics of Zapruder's camera. I believe it was spring-wound, and as such would not necessarily be filming at a consistent rate of speed. That is, while an average frame rate can be established (18.2 fps in this case), that rate would not necessarily be constant as the film passes through the gate. I have worked with films exposed in spring wound cameras and found frame rates to be variably inconsistent. This can explain the observable phenomena in the Zapruder film, and the effect is more pronounced at 18fps than it would have been at, say, 24fps.
Greer and Kellerman: Pat Speer, over on his website, has done a thorough job breaking down the eyewitness reaction and recognition of shots fired. Many many people did not recognize the first sound as gunfire - then there was a long pause, then a quick sequence of at least two shots. During the pause Jackie Kennedy is not acting like she knows her husband has been shot, she seems rather confounded by her husband's actions. It is certainly possible that Greer and Kellerman were responding to a commotion by their passengers without recognizing what it was about or that gunfire had been directed into the vehicle. Their reactions went against their training, but could well be simple human reaction. Greer was apparently quite distraught afterwords.
I think the limo slow down is visible in the Zapruder film, most clearly in the frames after the vehicle has passed Hill and Moorman. What hinders the recognition is that the background is mostly green lawn without any other figure to serve as a referent. Once I first noticed it, the limo slow down is apparent every time I see the film - but I do not know the degree to which this is a subjective observation (that is, not everyone may also see it).
Thoughts on Zapruder film alteration: I lean towards the authenticity of the Zapruder film. I have worked with aerial optical printers, the equipment necessary for alteration, including with 8mm film, and in my opinion the claims of complete alteration - whereby people, signs, etc have been added and subtracted within the frame - are impossible. The 8mm frame is too small to do that work, and the generational loss would be too obvious. A simple rectangle matte within an 8mm frame is a challenge. However, alteration involving the removal of frames is possible - although it would result in a generational loss and, because of the size of the 8mm frame, generational loss would become visibly noticeable by the second pass.
Some movements within the Zapruder film are indeed extremely quick. This might be the result of frame removal, but an alternate explanation can be found in the mechanics of Zapruder's camera. I believe it was spring-wound, and as such would not necessarily be filming at a consistent rate of speed. That is, while an average frame rate can be established (18.2 fps in this case), that rate would not necessarily be constant as the film passes through the gate. I have worked with films exposed in spring wound cameras and found frame rates to be variably inconsistent. This can explain the observable phenomena in the Zapruder film, and the effect is more pronounced at 18fps than it would have been at, say, 24fps.
Greer and Kellerman: Pat Speer, over on his website, has done a thorough job breaking down the eyewitness reaction and recognition of shots fired. Many many people did not recognize the first sound as gunfire - then there was a long pause, then a quick sequence of at least two shots. During the pause Jackie Kennedy is not acting like she knows her husband has been shot, she seems rather confounded by her husband's actions. It is certainly possible that Greer and Kellerman were responding to a commotion by their passengers without recognizing what it was about or that gunfire had been directed into the vehicle. Their reactions went against their training, but could well be simple human reaction. Greer was apparently quite distraught afterwords.