Blackmagic Design Cintel Scanner Installations- Und Bedienungsanleitung Seite 39

Check the Codec
DaVinci Resolve selects the 'Cintel Raw' codec by default, or you can choose 'Cintel Raw 3:1'.
The Cintel Raw Format
The Cintel Raw Format Bayer pattern of each film frame scanned with your Cintel
scanner's sensor is saved with embedded scanner metadata as a 12-bit linear Cintel
Raw Image, or CRI, image sequence. When grading in DaVinci Resolve, CRI images
are automatically debayered as 12-bit log encoded image data.
The logarithmic encoding is similar, but not identical to Cineon encoding. For example,
negative film is encoded using a Gamma of 2.046 for density, while print film is encoded
using a full range Gamma 2.2 curve to ensure that no image data is clipped. Both of
these logarithmic encodings can be converted to a linear color space using the 'Cintel
to Linear' 1D LUT, before converting to other color spaces you may want to work in.
The film is scanned using the full sensor area of 4096x3072 to keep the audio
waveform visible for optical audio and to accommodate perforation visibility for
stabilization. The image is then cropped and the resolution of the capture files
depends on the source film format after overscan for perforations and the audio area
are removed. For more information about scanning resolutions for different types of
film, see the 'specifications' section.
The Cintel scanner creates Cintel Raw files with variable bitrate lossless compression
by default. This is visually lossless compression and achieves approximately 3:2
reduction in file size depending on image content. However, Cintel Raw 3:1 uses lossy
compression with a ratio of approximately 3:1. This is still very high quality but may
not always be visually lossless. For example, files for 35mm 4 perf are approximately
12.5MB with Cintel Raw and approximately 6.3MB with Cintel Raw 3:1. Files for 16mm
are approximately 4MB with Cintel Raw and approximately 2MB with Cintel Raw 3:1.
CinemaDNG Quality Settings
To control the quality of CRI files, use the 'decode quality' and 'play quality' CinemaDNG
settings located in the Camera Raw panel of the project Settings. These settings are 'full'
by default. On computers with low processor or memory resources, these settings may be
lowered but this will affect the quality of the final render.
Set the Timeline Resolution
DaVinci Resolve displays and renders the output from the scanner using the same resolution
as the timeline. For example, for 35mm 4 perforation film, a custom resolution of 4096x3072
would be required for maximum resolution.
NOTE If your timeline is set for HDR with the desired deliverable at Ultra HD, a loss of
resolution may occur.
For more information on the cropped image area resolutions for all film gauges, refer to the
'effective resolutions' in the 'specifications' section. Alternatively, for the full native resolution of
the captured clip, access the 'clips attributes' in DaVinci Resolve.
Capturing Using DaVinci Resolve 39