[Ben Holmes]

(12-30-2016, 02:52 PM)Fendlesworth Wrote:  What looks odd to me is the images in background appear to be a bit larger than they should be. After watching a few synchronizations with the Nix and Muchmore Films, I haven't been able to spot any blatant discrepencies.

I think one should realize when watching the apparent near-constant speed of the Limo that Zapruders line-of sight was nearly orthogonal to to direction of the Limo when it slowed down. 

Think about this.

This means that at the time the Limo was travelling at it's slowest speed, the perspective of Zapruder would naturally show the Limo passing at the fastest rate. This issue of perspective would greatly mitigate the apparent deceleration of the Limo.

I would state that from this viewpoint, Zapruder would have the most accurate perspective of the limo's speed. It cannot "mitigate" a slowdown, it can only make it most visible. From the front or back, a slowdown would be difficult to see, but from the side, it's obvious, and there's nothing in such a perspective that would disguise the speed of the limo.
 

(12-30-2016, 02:52 PM)Fendlesworth Wrote:  We know that it slowed down, but were frames removed from the Zapruder Film to hide this?

Maybe so; maybe not.

This is simple to determine... What did the eyewitnesses say?

When you have several dozen eyewitnesses all stating that the limo slowed to a stop, or nearly to a stop - then you have to take them seriously.

When you see everyone in the limo react to a limo deceleration - yet don't see any apparent deceleration of the limo - you need to explain that fact. You either need to state that you see a slowdown in the film sufficient to throw all the passengers forward, or you need to hypothesize missing frames.

There are no other explanations...