Gemini 4:4:4 User Manual page 79


ARRI ALEXA ARRIRAW 4:3 Support
Our ARRIRAW Option originally only supported 16:9 Mode in the ARRI ALEXA Cameras.
This firmware version adds ALEXA 4:3 Mode support to all ARRIRAW Option owners at no
extra cost.
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on the Gemini 4:4:4.

Live/Playback 3D Combining options are available via menu items:
o
Outputs-> LCD/A 3D
Controls 3D Combining for the LCD and HD-SDI Output A
o
Outputs-> Out B
Controls 3D Combining for the HD-SDI Output B Separately

Due to high data rates, the 29.97 and 30P rates are recorded as "Packed" (in 3D
only), and require the
transfer) the data.

Note: If Camera Trigger or Timecode Trigger is used as the Record Trigger with
3D, the Trigger is based on Port A only; i.e., the Gemini will only start and stop
recording based on the Trigger activity of the Camera connected to
Input Port A.

Any audio is recorded from the SDI A (left) Input only, recorded to SSD 2.
Embedded SDI Timecode I taken from SDI A (left) Input only, and recorded to
both SSD's.

4:3 Mode support adds the ability to record 4:3 in 23.976 (23.98) / 24 / 25 / 29.97
/ 30 and 48 frames per second.

16:9 Mode continues to allow recording up to 60 frames per second, which is the
maximum supported by the ALEXA in 16:9 mode. In 4:3 Mode, the ALEXA's
maximum is 48 frames per sec.

In 4:3 or 16:9 Modes, the image from the ALEXA, with all metadata, is recorded to
the ".ari" files. In 4:3 Mode, a Desqueeze Option is available for confidence
monitoring of the image via the internal LCD Monitor or external HD-SDI
monitors.

The Desqueeze option is located in the Popup Menu (^) in lower right of screen.
This is designed to work with the 2.0x Anamorphic lenses.

Both ARRIRAW 4:3 and 16:9 support is available in Demo Mode, (with a
Gemini 4:4:4 User Manual
Gemini Transfer Utility to un-pack (and simultaneously
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