My plotting says JFK arrived opposite the lamppost at Z190. This is way closer to the Cutler and Roberdeau placements than Z186. I used the line-of-travel at the center of the street. If more to the south, he would arrive later than Z190.
As explained to you countless times, you're using a dissolved-foreground frame capture that allows the lightness of the white car to bleed through. It's a camera effect that I wonder if the human eye could duplicate. I don't think the SS intentionally wanted the foreground to dissolve; it just happened. From the SN window, Kennedy was dark-on-dark in his limousine and pictures of the foliage taken through the still cameras on Nov. 22 and during the SS reenactment show the foliage obscured the car in the Z190s.
A properly-focused camera and scientific placement of the automobile shows the President obscured in the Z190s. He becomes distinguishable by the mid-Z200s. Bear in mind that the Queen Mary's bright horizontal features (the cream-colored partition, jump-seats and folded canopy) that aid in sighting were not present during the assassination.
Are you saying that Oswald would not have been able to distinguish the oak leaves (green or brown colour) from the dark blue limousine and the red haired, blue suited JFK? Are you suggesting that Oswald could not have seen JFK while passing beneath the oak tree branches?
In the final analysis, all that really matters is whether JFK could have been hit by the time he reached the Thornton Freeway sign. I still put him there at z200 at the latest. If the car was moving 1 foot per frame, that fits with your view that he was opposite the lamp post at z190. I just view the evidence as putting it a bit earlier, particularly the appearance that he is reacting by z198, Ready removing his right hand from the front handhold to turn to the right/rear at z199, Phil Willis saying that his z202 photo was taken an instant AFTER the first shot, Betzner saying that the first shot occurred a moment after his z186 photo, Linda Willis saying that the first shot occurred when JFK was between her and the Stemmons sign (which appears to be from z196 to about z205 (by aligning Linda, JFK and a few feet below the bottom of the sign):
I have adjusted the position of the Limo and the followup QM to show the positions of JFK and Clint Hill at the time Betzner took his z186 photo, showing the limo width at 1/2 the width of a lane (brown line) and the left side of the limo just inside the left lane marker and with JFK's midline 1/5th of the width of the car (15 inches) inboard from the right edge of the car.
It looks to me like JFK at z186 is no more than 2 feet from being even the lamp post at z186 ie. he was even with the lamp post at z188. You say z190. We are not differing by much. Again, that fits quite well with a first shot by z200.
