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In case you didn't realize it:

152.5 frames /18.3 fps = 8.3333... seconds

This, in keeping with 8.333...ft  total elevation.

Which equals the 1 to 1 ratio.

 

 

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Of course 11.2mph was going to be the average limo speed.

Do you think Shaneyfelt had to cross-multiply those previous results when he was figuring out where the limo was going to start on film? 

11.2mph x (1.47ft per sec =1mph) = 16.47ft per sec x 8.333... sec = 137.25ft

7.5ft elevation (CE884 Z161-Z313) x 18.3ft per elevated ft = 137.25ft

Mr. SHANEYFELT. That is the overall average from 161 to 313. It does not mean that it was traveling constantly at 11.2, because it was more than likely going faster in some areas and slightly slower in some areas. It is only an average speed over the entire run. 
Mr. DULLES. Over the entire run between what points? 
Mr. SHANEYFELT. Between frame 161 and 313. 

 

 

 

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On 2/26/2018 at 9:18 PM, Chris Davidson said:

David,

1.525frames per inch = 18.3frames per 12inches = 1second per 12inches
 

 



 

 

Now expand 18.3 frames per 12 inches (ten-fold):

183frames = 120inches

Now what span would give us 183 frames?

38812939480_abfde73905_b.jpg

 

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I believe, at this junction, it's appropriate to post the remaining information to my previous "Math Rules" topic.

It should become readily apparent, why I'm crossing over.

 

 

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16 hours ago, Chris Davidson said:

Now what span would give us 183 frames?

2+50 = elevation 429.7   ....    Shot #2 at 419.7 (not 419.07) is 10 feet lower in elevation

313 - 183 = 130...  just about the splice for the limo cut...

 

  

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On 3/5/2018 at 8:44 AM, David Josephs said:

2+50 = elevation 429.7   ....    Shot #2 at 419.7 (not 419.07) is 10 feet lower in elevation

313 - 183 = 130...  just about the splice for the limo cut...

 

  

You can move that elevation relationship from Position A (428.7) to extant z313 (418.48) = 10.22ft

The extra .22ft x 18.3 = 4.02ft = the Drommer label for a location near, but not indicative of extant z313.

Equals the very close 2nd head shot.

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David,

Bingo.

Earlier in this topic(shown below), I supplied a breakdown for the Bronson flash frame and how that could be incorporated into the two headshot scenario.

The only change now needed was the conversion using 18fps instead of 18.3fps, which will then match the previous post's distance difference of .22ft elevation = 4.02ft

It would look like this now:

The extant Zfilm(z301-z313) shows the limo travel (18/12 = 1.5 x 7.2ft = 10.8ft per sec /18frames)

10.98(from below graphic) - 10.8 = .18ft

4.2 - .18ft = 4.02ft 

The equation below should still reflect(or very close to) the excised frames around the two headshots. Imo

39767626375_42f3de3410_b.jpg

 

 

 

 

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13 hours ago, Chris Davidson said:

10.98(from below graphic) - 10.8 = .18ft

168-171 is 3 frames

161-166 is 5 frames

.09 foot per frame

2frame diff is .18 foot...    does this change at 166 equate to the .18’ change at 313?

or just a coincidence?

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I think a coincidence.

That location z161-166 / z168-z171 does impact the area circa extant z313, but I believe in this way.

Previously, I converted the extant  zfilm in correlation with Bronson's film.

But I didn't convert from a 48fps version stepped down to 18fps. Only converted from 18.3Z/12Bronson

When you use 48fps, 18/12, the frame conversion between Bronson and Z ends up this way:

4Bronson x 1.5 (18/12) = 6z x 2.666666(48fps/18) = 16 zframes

 

4.02ft / 16 frames = .25125ft per frame

.25125 x 18frames (1sec) = 4.52ft

 

The distance the limo travels when plotted from extant z156-z166 = 10.8ft in 10 frames = 1.08ft per frame = 13.44mph

z161-z166 = 5 frames x 1.08 ft per frame = 5.4ft

5.4ft - .9(distance traveled entry on CE884 for z161-166) = 4.5ft

5.4ft/18fps = .3ft per frame = z168-z171= .9ft per 3 frames

 

 

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David,

The difference you are referring to between .3(z168-z171) and .18ft(z161-z166) per frame =.12ft per frame

It might help to convert to a whole second:

.12ft per frame x 18fps = 2.16ft per sec / 1.47(1mph) = 1.469ft per sec = 1 mph difference

Apply the 1.111111 pass(removing 1 of the leftover 39.22 frames) to the average 11.2mph WC standard = 11.2 x 1.11111111 = 12.444...mph x 1.47 = 18.293ft per sec = 1to1 ratio @ 18.3fps

Apply the 1.2 pass(removing 1/6 frames) to the average 11.2mph WC standard= 11.2 x 1.2 = 13.44mph

Difference between 13.44 and 12.44mph =1mph

The difference of 2.16ft separating 2 frame spans 161-166 (5frames) and 168-171(3 frames) in 1 second of time, is a  2 frame difference / 2.16ft = 1.08ft distance per frame = average limo speed per frame plotted at this location- approx z156-z166 = 10.8ft/10 frames.

 

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