Sensor Settings; Mirroring The Sensor Image; User Pixel Masking - ARRI ALEXA 35 User Manual

Sensor Settings

17 Sensor Settings
17.1

Mirroring the Sensor Image

You can mirror the sensor image in horizontal and vertical directions.
Horizontal mirroring is applied on all monitoring paths and internally recorded material. Vertical
mirroring is only applied to the monitoring outputs; internally recorded material is not vertically flipped,
but the information is written into metadata.
► Select MENU > Image > Mirror Image.
Following options are available:
Off
V
H
V+H
User Button Mirror Image supports to quickly switch Mirror Image.
17.2

User Pixel Masking

All sensors exhibit a certain number of defect pixels, and ARRI cameras have three mechanisms
to catch and correct them: one is a static pixel correction based on a pixel mask created during
manufacturing. The second is a dynamic pixel correction that continuously evaluates each frame and
masks defect pixels that are not caught by the static pixel mask. In very few cases, we have observed
some pixels that are not corrected by either method; for those cases the third, User Pixel masking, is
available. User pixel masks can be created using the ARRI Reference Tool (ART).
When shooting ARRIRAW, it is not necessary to load the User Pixel Mask into the camera. Instead,
it can be applied to the ARRIRAW files in post production using the ARRI Reference Tool or any third
party software that has implemented the User Pixel Mask feature through the ARRI Image SDK.
The User Pixel Mask will remain intact after a factory reset and after a camera software update. It can
be manually removed or overwritten with a new one at any time.
► Select MENU > System > Sensor > User Pixel Masking.
User Pixel Mask Active
Install User Pixel Mask
Export User Pixel Mask
Delete User Pixel Mask
Grab Raw Image
User Pixel Mask Generation
► Insert a USB memory stick into camera.
► Select MENU > System > Sensor > User Pixel Masking > Grab Raw Frame to grab an ARRIRAW
frame.
The ARRIRAW frame grab is stored on the USB memory stick in folder ARRI/ALEXA35/SENSOR.
Alternatively, you can record a short ARRIRAW sequence and use that material for marking defect
pixels.
Mirroring is inactive.
The sensor image is vertically mirrored.
The sensor image is horizontally mirrored.
The sensor image is vertically and horizontally mirrored (rotated by 180°).
Shows whether a User Pixel Mask is currently active in the camera.
Select to install a User Pixel Mask from USB memory stick.
Select to back up the currently installed User Pixel Mask onto USB
memory stick.
Select to uninstall a User Pixel Mask.
Stores an ARRIRAW frame grab on the USB memory stick.
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