Chris Davidson Posted June 19, 2019 Author Share Posted June 19, 2019 15 hours ago, Chris Davidson said: This might help: David, I have a little more to do on this span z133-166, then I can move onto PositionA again. https://drive.google.com/file/d/19f7ymKP0rgx6qvO8gArgPhPZX4NEROct/view?usp=sharing Link to comment Share on other sites More sharing options...
Chris Davidson Posted June 19, 2019 Author Share Posted June 19, 2019 On 3/28/2018 at 9:06 AM, David Josephs said: JFK at the Zfilm's 166 - with the same Line of Sight - and the change to CE884... moves the location of 166 back 5.4 feet.... By 171 the front left tire of the limo has reached the lane strip... yet the movement actually puts the arbitrary 171 farther back than the zfilm 166... Even Shaneyfelt messes his testimony up a bit... if the first frame was 171, how did it become 161? This version is the same as the previous two, the only difference is I recorded it at 30fps, so you could see the actual frame total and fps playback rate = approx 18fps. There are 43 (0-42) progressive frames in the original. 33 x 2.622 (48/18.3) = 86.52 frames / 2 = 43.26 frames 43-33 = 10 frames (z171-z161) was the initial calculation for frame manipulation. https://drive.google.com/file/d/1nKSykVwptv49VMs6YRbThDffNJ_P0HzH/view?usp=sharing Link to comment Share on other sites More sharing options...
Chris Davidson Posted June 19, 2019 Author Share Posted June 19, 2019 (edited) 2 hours ago, Chris Davidson said: This version is the same as the previous two, the only difference is I recorded it at 30fps, so you could see the actual frame total and fps playback rate = approx 18fps. There are 43 (0-42) progressive frames in the original. 33 x 2.622 (48/18.3) = 86.52 frames / 2 = 43.26 frames 43-33 = 10 frames (z171-z161) was the initial calculation for frame manipulation. https://drive.google.com/file/d/1nKSykVwptv49VMs6YRbThDffNJ_P0HzH/view?usp=sharing It appears they decided the splice area would start around the halfway mark of those 43frames or 133 + 21.5 =154.5 The problem that arose from the initial calculation is (extra frames within that z133-z166 span) it was not based on the limo speed / distance traveled. A more exact determination, averaging 14.94mph (CE884- z168-z186 orange version) and the ratio of 1.166x faster than the average speed of the extant Zfilm from z133-z166 = 13.44mph. 13.44 x 1.16666 = 15.68mph 14.94 +15.68 = 30.62 / 2 = 15.31 x 1.47 = 22.50ft /35.5ft = 1.577 sec x 48 = 75.73frames/ 2 = 37.86 frames-33 = 4.86 frames = 5 frames approx. Based on the actual limo speed the realization set in that approx 5 frames needed to be excised between z133/166. Follow the bouncing frames starting at z171, back to z166, down to z161 for the final resting place. Edited June 19, 2019 by Chris Davidson Link to comment Share on other sites More sharing options...
Chris Davidson Posted June 20, 2019 Author Share Posted June 20, 2019 On 6/18/2019 at 9:48 AM, David Josephs said: How do you incorporate Position A into this Chris? Shaneyfelt is basically stating the limo passed thru this spot... and is the reason, as I see it, for the Towner/Zapruder sync David, Truly says it takes a wide turn at that spot. (Never heard a same day statement, this only came in his prepared WC testimony). If they both wanted it to pass through that location, but it didn't, they (in essence) were trying to retard the advancement of the limo. (Slow it down). This concept is no different than having the limo travel 2.24/3.74mph in the CE 884's we possess. I've provided other examples in previous posts, but plotting Towner doesn't have the limo traverse PositionA. PositionA is the pivot/pivotal point ( lack of a better description) for adjustments down Elm St both horiz/vert in sync with designated limo speeds/ frame manipulation. More to come. Link to comment Share on other sites More sharing options...
David Josephs Posted June 21, 2019 Share Posted June 21, 2019 To me Chris, the limo appears to be sliding sideways as a strange visual occurs... I have a gif that shows this too but not the room to post it... The column gets BIGGER yet the limo tire gets SMALLER... if you move back and forth in the film at this spot... it appears the limo slides to its left as everything gets bigger in the background - everything but the limo.... I have 2 insets in the bottom image from the top one... the column and the tire How does the Column get bigger the farther away the limo goes?? Link to comment Share on other sites More sharing options...
Chris Davidson Posted June 21, 2019 Author Share Posted June 21, 2019 1 hour ago, David Josephs said: To me Chris, the limo appears to be sliding sideways as a strange visual occurs... I have a gif that shows this too but not the room to post it... The column gets BIGGER yet the limo tire gets SMALLER... if you move back and forth in the film at this spot... it appears the limo slides to its left as everything gets bigger in the background - everything but the limo.... I have 2 insets in the bottom image from the top one... the column and the tire How does the Column get bigger the farther away the limo goes?? Stationary objects increase in size. Objects in motion(limo tires /cycle cops) moving farther away from the camera, decrease in size. I'm sure the motion objects increase via the zoom too, but then you would have to compare distance traveled vs. zoom lens characteristics. http://educationforum.ipbhost.com/topic/22692-swan-song-math-rules/?do=findComment&comment=376404 If there is a way to show Towner always had the camera set on zoom, then that would be a big problem. Or, try to reproduce the same results by recording video via a smart phone, using a vehicle moving away and adjust the zoom lens during filming. Link to comment Share on other sites More sharing options...
Ray Mitcham Posted June 21, 2019 Share Posted June 21, 2019 Chris, looking at the two frames, in both, the guy, with the hat, who is standing in front of the column appears to stay the same size, which wouldn't happen if the zoom was activated. Link to comment Share on other sites More sharing options...
Chris Davidson Posted June 21, 2019 Author Share Posted June 21, 2019 44 minutes ago, Ray Mitcham said: Chris, looking at the two frames, in both, the guy, with the hat, who is standing in front of the column appears to stay the same size, which wouldn't happen if the zoom was activated. Ray, I don't have a problem with the notion the Towner film was altered more than the single splice that we see. I think it needs to be addressed a little differently. If I were to show you a side x side comparison of two frames with the zoom executed, you might look at it and say it's obvious he's larger in one than the other. It would be difficult (imo) to prove alteration this way. But, if I pointed out that (what appears/supposed to be) his right waving hand is much larger than it should be (compared to his head) and this occurs in relationship to the limo length, then I would be much more inclined to believe what David has been stressing. It would then connect me back to what I have stated about the Myer's 8% plat solution and the recent previous equations involving the limo length. Same concept. Hope that make sense. Link to comment Share on other sites More sharing options...
David Josephs Posted June 21, 2019 Share Posted June 21, 2019 1 hour ago, Ray Mitcham said: Chris, looking at the two frames, in both, the guy, with the hat, who is standing in front of the column appears to stay the same size, which wouldn't happen if the zoom was activated. A zoom would bring all things closer and make them larger If she ran toward the limo without changing zoom, everything gets bigger Look at those frames slowly if you can... the limo slides left as the background grows.... Link to comment Share on other sites More sharing options...
Chris Davidson Posted June 21, 2019 Author Share Posted June 21, 2019 On 6/18/2019 at 9:48 AM, David Josephs said: How do you incorporate Position A into this Chris? More incorporating with Position A: PositionA to extant z161: 50.7ft - 20.65 = 30.05 / 18.3 = 1.642 + 416.83 = 418.472 = extant Z313 Elevation Conversion: 2.77ft - 1.128 = 1.642ft elevation change 30.2 (Station #299-329.2) /18.3 = 1.65 Specter had to fine tune the location of the original extant z313 shot (FBI/SS Dec 1963) in relationship to the Altgen's designated shot, by moving it back east up Elm St an elev of .13ft In doing so, this now synced with the elev span from z133(first limo frame on film) - z161. Think this is a reflection of syncing elevations to an extant film with the limo speed/distance as a variable? Link to comment Share on other sites More sharing options...
Chris Davidson Posted June 21, 2019 Author Share Posted June 21, 2019 On 2/20/2016 at 12:47 PM, Chris Davidson said: =1.259666…. ft per frame x 18.3 - Frames per sec = 23.05ft traveled in 1 second @ 18.3 frames per sec divide 48 frames per sec true camera speed at this point = .48 ft per frame x 5 frames (z161-166) = 2.4ft = distance between JFK and Connally in limo. = 5 true consecutive frames from a 48fps film. Now integrate Specter's subtle adjustment(previous posting) with the frame manipulation and the difference is .021ft = 1/4 inch. Nice syncing for all the work they did. 418.48 - 418.35 = .13 x 18.3 = 2.379ft 2.4ft / .4802 = 5frames Link to comment Share on other sites More sharing options...
Chris Davidson Posted June 21, 2019 Author Share Posted June 21, 2019 The background is stabilized. I sped up the frame rate to 24fps so the initial zooming start point is easier to see. https://drive.google.com/file/d/1TRiqS9AgADt9G6iw8yGDEVv0AZI4hsZe/view?usp=sharing Link to comment Share on other sites More sharing options...
Chris Davidson Posted June 22, 2019 Author Share Posted June 22, 2019 On 6/21/2019 at 7:57 AM, David Josephs said: To me Chris, the limo appears to be sliding sideways as a strange visual occurs... I have a gif that shows this too but not the room to post it... The column gets BIGGER yet the limo tire gets SMALLER... if you move back and forth in the film at this spot... it appears the limo slides to its left as everything gets bigger in the background - everything but the limo.... I have 2 insets in the bottom image from the top one... the column and the tire How does the Column get bigger the farther away the limo goes?? David, I figured a different way to test this would be to find two frames from Towner where that wheel is approx the same distance (32ft) from Towner's camera position. The plotted red line to the wheels is the same line (just rotated it in Photoshop) and the longer plotted red lines are a match for the LOS blue lines on the frames. Now it's quite clear (at least to me) that your observation is correct. Outstanding job. Link to comment Share on other sites More sharing options...
David Josephs Posted June 24, 2019 Share Posted June 24, 2019 (edited) Thanks Chris.... So Truly's close call at Little Elm's curb and Position A were removed from Towner using techniques about which David Healy talks... the limo is matted and moved away from the curb...?? Here's the curb avoided in Couch or Darnell (I forget) with Towner superimposed... If the limo actually passes thru Position A, it SHOULD be on Towner... no? Edited June 24, 2019 by David Josephs Link to comment Share on other sites More sharing options...
Michael Cross Posted June 24, 2019 Share Posted June 24, 2019 On 6/21/2019 at 5:49 PM, Chris Davidson said: The background is stabilized. I sped up the frame rate to 24fps so the initial zooming start point is easier to see. https://drive.google.com/file/d/1TRiqS9AgADt9G6iw8yGDEVv0AZI4hsZe/view?usp=sharing Amazing. The background "grows". Outstanding work Chris and David. Link to comment Share on other sites More sharing options...
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