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Red Scarlet X 2.0.2 - 2011 Manual

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Version 2.0.2
NOVEMBER 18, 2011 ©2011 RED.COM INC.
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THEORY OF OPERATION
The RED SCARLET-X digital cinema camera provides high performance digital imaging over a wide range
of frame rates and optical formats including Super 35mm, 35mm and Super 16mm. The camera is
available with a Ti PL mount, and may be configured with mounts and 19 mm rods to accommodate most
cinematography lenses, matte boxes and follow focus systems. Adaptors for 15mm offset studio and
15mm lightweight rods are also available.
In addition to compatibility with existing PL mount cinematography lenses, a select range of S35mm
(APS-H) PL mount prime and zoom lenses are available from RED.
Other lens mounts, including Canon EOS are available, permitting the use of Canon photographic lenses.
Lens mounts can report lens iris, focus and zoom data when mated to an appropriate lens. In addition, the
iris and focus settings for select Canon lenses may be driven from the camera. Lenses with small image
circles may have restricted sensor coverage at wide angle.
Lens mounts may be exchanged in the field, however it is highly recommended that this be performed in a
dust-free environment, as the optical path will be exposed to the elements during this process.
A B4 mount to PL mount adaptor is also available to permit use of 2/3” HD lenses on the RED SCARLET-
X camera. The optical coverage it provides is approximately equivalent to 16mm hence the maximum
recording resolution with a B4 lens is 2K RAW (2048 x 1152 pixel) progressive scan.
MYSTERIUM X® SENSOR
The MYSTERIUM X sensor has been specifically designed for use with RED SCARLET-X cameras, and
provides variable frame rate imaging over 0.5 to 60 fps at 2K, 0.5 to 48 fps at 3K, 0.5 to 30 fps at 4K, and
0.5 to 12 fps at 5K.
Native color balance for the MYSTERIUM X sensor is 5,000 degrees Kelvin, but it may be electronically
compensated for any color temperature in the range 1,700 to 10,000 degrees Kelvin. White balance
preset values include Tungsten (3200K) and Daylight (5600K) light sources; the camera may also calculate
a color neutralizing White Balance value on demand by imaging on a standard white or 18% grey card.
The MYSTERIUM X sensor includes high precision analog to digital conversion, capable of delivering up
to 13.5 stops of dynamic range with daylight light sources over a camera sensitivity range of 320-800 ISO.
IMAGE PROCESSING
The digital image received from the sensor is formatted as a pixel defect corrected (but in all other
aspects unprocessed) 12-bit, 14-bit or 16-bit per pixel RAW data frame. When recording, successive
images (FRAMES) received from the sensor are collected together into a CLIP.
Each RAW frame or sequence of RAW frames in a clip is compressed using proprietary wavelet based
REDCODE® RAW compression, then stored to digital media such as a REDMAG™ 1.8” SSD.
The RAW data recorded is independent of any RGB domain signal processing choices such as ISO, White
Balance or other RGB color space adjustments made by the camera operator. These parameters are
saved with the RAW data as reference METADATA; they are not burned into the recorded RAW data.
This recording technique permits RGB color processing choices to be deferred to post production and/or
to be adjusted in the field to visualize alternative color treatments, without affecting the recorded image.
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