Ncam Reality
Appendices
Vignette Reduction
4min
One of the options made available in the lens calibration interface is a vignetting reduction tool.
This is intended to aid the user in overcoming issues with the calibration charts being detected when there is a large amount of vignetting present on the camera feed. This is typically seen when trying to calibrate anamorphic lenses, and is not typically an issue with most lens calibrations.
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Using the vignette reduction tool is not normally required for the vast majority of lens calibrations
The vignetting reduction tool has 4 modes available to choose between:
- None - No vignetting reduction is applied, this is the default setting
- Manual - A slider is exposed to manually adjust the strength of the tool
- Semi Automatic - Allows a calibration step to be conducted to reduce vignetting
- Automatic - Automatically reduces vignetting
Position a plain white surface in-front of the camera and ensure that it fills the entire frame. Following this press "capture"
Simply press "capture" to enable the vignetting reduction