Color Space And Sizing - Blackmagic Design Cintel Scanner Installations- Und Bedienungsanleitung

Height
Sometimes film frames on older rolls of film may be slightly smaller than normal due to
shrinkage over time. When making manual adjustments to the guide box, you can make
adjustments for film shrinkage using the 'height' slider.
Auto Adjust Audio Scan Height
This setting is on by default and automatically adjusts the guide box height to align with the
audio waveform at the top of each frame. The automatic feature works well for normal audio
conditions, however, if during extraction you notice the box moving randomly and the quality
of the extraction is affected, it may be due to similar features in the audio track overlapping
between frames. If this occurs, deselect the checkbox and try the extraction again.
If deselecting the 'Auto adjust audio scan height' checkbox, make sure the 'height' setting
places the guide box at the optimal position for the frame. Making manual adjustments can help
if you need them, but don't forget to turn the automatic features back on afterwards!
Audio Waveform Color is White
Depending on the scanned film type, the audio waveform may be black or white. If the
waveform is white, make sure the corresponding checkbox is enabled. This will ensure the
white information in the waveform is used during audio extraction. If the waveform is black and
the surrounding audio area is white, disable the checkbox so DaVinci knows to use the black
information in the waveform. Other automatic features, such as mid point and mono detection,
also rely on this setting being set correctly.
Override Firmware Stability
In rare instances, the condition of the film may have created large movements in the frame
due to the internal firmware stabilization. This can cause the audio extraction guide box to
misalign with the optical track. If this occurs, enabling 'override firmware stability' lets the audio
extraction guide box track the film perforations independently and adjust its positioning for
potentially better results.
Variable Density Audio
If your film contains variable density audio, make sure you select the 'Variable density audio'
checkbox so DaVinci Resolve knows the type of audio to extract. The default state is set to 'off'
for variable area audio soundtracks.
If you haven't used variable density audio before, you can visually identify it as a tight sequence
of shaded lines, similar to a bar code with the lines squeezed closer together. By comparison,
'variable area' soundtracks appear as an audio waveform.

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.
Capturing Using DaVinci Resolve 45