Color Space And Sizing - Blackmagicdesign Cintel Installation And Operation Manual

Color Space and Sizing

A pair of 1D LUTs, 'Cintel Negative to Linear,' and 'Cintel Print to Linear,' have been provided
to help you convert scanned media to a color space in which you can do further work. You can
apply these LUTs via a node in the 'color' page to convert the original scans to a Linear color
space. However, if you want to convert the image to Rec. 709 or to Cineon for further
adjustment, you'll want to apply a second LUT in a second node. The default color space for
print is a 2.2 gamma standard log curve, and all others are 2.046 film density log gamma.
In general for negative film, it's best to "color invert" after the second LUT is applied.
Furthermore, normally some grading is required on the Linear data to remove black offsets,
due to Dmin, for proper conversion into the destination color space. There are a variety of
VFX IO LUTs available in the 3D LUT submenu of each node's contextual menu that let you
convert an image from Linear color space to any other color space you want to work within.
For more information, see the DaVinci Resolve manual section 'Applying a LUT Within a Node'
in Chapter 30, "Working in the Node Editor."
Using three nodes to convert a film scan using LUTs, node 1 converts from Negative or Print
to Linear, node 2 converts from Linear to Rec. 709, and node 3, if required, inverts the color
Applying a LUT within a node will clip any image data falling below 0 and above 1. To prevent
clipping, you can use the Lift/Gamma/Gain controls within any node with a LUT applied to adjust
your image levels prior to the transform applied by the LUT within that node.
The format of the film you're scanning and the way the material was originally shot both affect
the framing. You can adjust the final framing of your scanned clip by resizing, zooming,
stretching, panning, tilting, and more. On the 'color' page, open the 'sizing' palette and use the
'input sizing' mode to create the necessary framing. To save your sizing preferences as a preset,
open the menu, select 'save as new preset' and enter a name for your preset.
Once you've created an appropriate sizing preset for a given type of media, you can apply that
preset to multiple film scans all at once, in either the color page or in the media pool using the
'change input sizing preset' command, found in the contextual menu of selected clips. For more
information on sizing, see the 'sizing and image stabilization' chapter in the DaVinci
Resolve manual.
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