Light Source - Blackmagic Design Cintel Manual De Instalación Y Funcionamiento

Light Source

These controls let you adjust the scanner's light source to adjust the optimal Dmin, which is the
minimum scanned signal value, plus the color temperature of the scanned material. Use the
built in software scopes in DaVinci Resolve to help set your light source to its optimum level
settings. Scopes can be opened in the Media page by choosing Workspace > Video Scopes >
On. You can adjust these settings to make sure you're not clipping image data during the
scanning process.
Light Source controls in the Media page showing the default uncalibrated status of
the light source (left), and the status when calibration is successful (right)
Light Source master wheel:
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to the color wheel and adjusts the intensity of the light source used to illuminate the
film, raising or lowering the RGB channels all at once. For typical negative film, this lets
you adjust the black point of the film image, which is the darkest part of the image. In
negative film, this in fact corresponds to the highlights of the film image. Adjust the light
intensity to sit just above the typical Dmin value of 95, as measured on the histogram
of the video scopes, which guarantees that the highlights won't be clipped by a
Cineon-style LOG conversion. For positive film, simply adjust the master wheel so that
no part of the signal is being clipped.
Auto Black and Auto White button:
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and does an automatic adjustment to set the black point for negative, or for print to set
the white point. For positive film types, the 'auto black' button changes to 'auto white'.
Whenever you change film type, gauge or enable HDR, the auto black/white calibration
is reset. The status indicator under the auto black/white button reminds you to
recalibrate the LED light source to help ensure the highest quality scans or inform you if
any problems occur.
RGB controls: By default, a color balance control lets you adjust all three color
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channels by varying amounts to alter the color temperature of the light source used to
illuminate the film, while the adjusted R, G, and B values are displayed in three fields
below. Optionally, you can choose to put this control into 'color bars' mode using the
mode pop-up to the right of the 'light source' title bar, which changes this control to
three vertical red, green, and blue color channel sliders.
The vertical light source master wheel is located next
Analyzes the current frame displayed in the viewer
Capturing from Cintel using DaVinci Resolve 28