| Comparison of Sync Shepherd Prediction with
Measured Shutter Sync |
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| Twin
Sony DSC-V1 Digital Cameras |
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| Sync
Shepherd: 0% out of phase = 0.455 volts, 100% out of phase =4.99 volts |
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| Expected
Sync = ((measured - 0.455)/(4.99 -
0.455))(1frame/2phases)(1/29.94frames/sec)(1000msec/sec) |
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| Camera sync
measured by photographing a computer screen at 75Hz screen refresh rate, with
10.4 graduations per screen. |
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| (0.4 of the
screen graduations are off the viewable screen, allows time for raster to
reset from lower right to upper left) |
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| Measured
sync=Absolute(Right - Left
graduations)(1screen/10.4graduations)(1sec/75screens)(1000msec/1sec) |
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| Sync Shepherd |
Expected Sync |
Right Cam |
Left Cam |
Measured Sync |
|
Pearson Coefficient Expected vs Measured |
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|
| (volts) |
(msec) |
(shutter opens) |
(shutter opens) |
(msec) |
|
r |
|
|
| 0.537 |
0.30 |
2 |
1.73 |
0.35 |
|
0.969102728 |
|
| 0.559 |
0.38 |
2.3 |
2 |
0.38 |
|
| 0.58 |
0.46 |
0.65 |
0.22 |
0.55 |
|
| 0.589 |
0.49 |
8.95 |
8.52 |
0.55 |
| 0.457 |
0.01 |
3.18 |
3.18 |
0.00 |
| 0.458 |
0.01 |
5.52 |
5.5 |
0.03 |
| 0.467 |
0.04 |
6.7 |
6.62 |
0.10 |
| 0.475 |
0.07 |
10 |
9.9 |
0.13 |
| 0.524 |
0.25 |
3.6 |
3.4 |
0.26 |
| 0.457 |
0.01 |
0.7 |
0.7 |
0.00 |
| 0.46 |
0.02 |
1.2 |
1.17 |
0.04 |
| 0.467 |
0.04 |
2.08 |
2.02 |
0.08 |
| 0.478 |
0.08 |
1.05 |
1 |
0.06 |
| 0.489 |
0.13 |
8.8 |
8.7 |
0.13 |
| 0.535 |
0.29 |
3.2 |
3.42 |
0.28 |
| 0.528 |
0.27 |
4.2 |
4.4 |
0.26 |
| 0.505 |
0.18 |
2.42 |
2.52 |
0.13 |
| 0.495 |
0.15 |
9.42 |
9.51 |
0.12 |
| 0.48 |
0.09 |
6.77 |
6.82 |
0.06 |
| 0.471 |
0.06 |
9.4 |
9.4 |
0.00 |
| 0.455 |
0.00 |
9.12 |
9.1 |
0.03 |
| 0.462 |
0.03 |
4.38 |
4.3 |
0.10 |
| 0.47 |
0.06 |
0.45 |
0.35 |
0.13 |
| 0.478 |
0.08 |
1.32 |
1.23 |
0.12 |
|
| 0.486 |
0.11 |
8.45 |
8.3 |
0.19 |
|
| 0.456 |
0.00 |
8.12 |
8.1 |
0.03 |
|
| 0.464 |
0.03 |
9.58 |
9.54 |
0.05 |
|
| 0.471 |
0.06 |
6.51 |
6.49 |
0.03 |
|
| 0.48 |
0.09 |
7.7 |
7.6 |
0.13 |
|
| 0.487 |
0.12 |
9.55 |
9.45 |
0.13 |
|
| 0.493 |
0.14 |
0.14 |
0 |
0.18 |
|
| 0.461 |
0.02 |
1.3 |
1.3 |
0.00 |
|
| 0.459 |
0.01 |
3.48 |
3.45 |
0.04 |
|
| 0.467 |
0.04 |
5.67 |
5.6 |
0.09 |
|
| 0.53 |
0.28 |
8.5 |
8.23 |
0.35 |
|
| 0.536 |
0.30 |
9.5 |
9.2 |
0.38 |
|
| 0.552 |
0.36 |
1.55 |
1.27 |
0.36 |
|
| 0.559 |
0.38 |
7.9 |
7.55 |
0.45 |
|
| 0.46 |
0.02 |
6.8 |
6.8 |
0.00 |
|
| 0.455 |
0.00 |
6.96 |
6.96 |
0.00 |
|
| 0.463 |
0.03 |
8.58 |
8.51 |
0.09 |
|
| 0.474 |
0.07 |
6.02 |
5.99 |
0.04 |
|
| 0.482 |
0.10 |
8.79 |
8.68 |
0.14 |
|
| 0.461 |
0.02 |
4.95 |
4.95 |
0.00 |
|
| 0.455 |
0.00 |
5.05 |
5.05 |
0.00 |
|
| 0.461 |
0.02 |
4.96 |
4.95 |
0.01 |
|
| 0.467 |
0.04 |
4.99 |
4.95 |
0.05 |
|
| 0.476 |
0.08 |
6.8 |
6.71 |
0.12 |
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