Datavideo VS-150, Instruction Manual

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13
Luminance Adjustment (WAVEFORM MONITOR)
1. Under the same on set lighting conditions aim the camera back to the white background or ideally a grayscale
reference chart.
2. Select WAVEFORM mode on the VS-150 using the NEXT MODE option.
3. Adjust the camera’s IRIS and matrix to reach the desired maximum white level state. There may be a pre-selected
level, such as 600mv as a standard for consistency in brightness.
4. If aiming at a precise grayscale chart, the VS-150 waveform output may resemble an X shaped matrix. The steps in
this matrix should be evenly distributed in line with the grayscale chart. However, if the matrix is not evenly
distributed, it means that the Gamma is not correctly set, and will lead to further adjustment of the camera.
5. Once the first camera is correctly calibrated select TOOLS> TRACE MEMORY> SAVE TRACE to save the
calibrated matrix levels from the first camera.
6. Now connect VS-150 to the second camera on the set. Adjust the white and black balance on the next camera as
described earlier.
7. Now adjust the grayscale matrix reading from second camera output so that it matches the saved matrix from first
camera to align the cameras. The same procedure can be repeated for any remaining cameras.
The grayscale matrix image above is not evenly stepped and shows there are four over-exposed white areas
Colour /Hue Adjustment (PARADE RGB / YCbCr)
1. Under the same on set lighting conditions aim the camera at a colour reference chart (such as DSC labs’ Chroma Du
Monde).
2. Adjust the colour level of the camera to give its image the required warmer or colder look according to your
preference.
3. Select PARADE mode (RGB or YCbCr) on the VS-150 using the NEXT MODE option.
4. PARADE displays the characteristic colour levels on a scale. If the camera is pointed at the Chroma Du Monde
reference chart, the operator can now set the camera to standardised colour levels such as R:650mv G:600mv
B:600mv. These adopted set reference points can then ensure image consistency in future production runs and any
post production grading.
5. Once the first camera is correctly set for colour select TOOLS> TRACE MEMORY> SAVE TRACE to save the
current parade trace from the first camera.
6. Now connect VS-150 to the second camera on the set. Adjust the white, black balance and luminance on the next
camera as described earlier.
7. Now adjust the colour on the second camera output so that it matches the saved Parade from the first camera. The
same procedure can be repeated for any remaining cameras.
Set your own standard (The colour of the image above is leaning toward red)