Signal Muxing & Stereo3D Monitoring
It will be necessary to view the output of the two cameras superimposed on each other in order to
calibrate. Some professional 3D monitors are capable of accepting separate left and right HD-SDI
signals (genlocked) directly from the HD-SDI out of the cameras. However most 3D monitors,
including consumer HDMI1.4 compliant 3DTVs, will require a "muxed" signal in a standard 3D format
like side by side, top/bottom or frame-packed. There are several third party "muxing boxes" on the
market for about $500USD that can combine the HD-SDI outputs of the two cameras into a single
HD-SDI or HDMI signal for monitoring on a 3DTV.
MOUNTING THE CAMERAS
Proper con guration for CMOS shutters
The CMOS sensors in the XF105 and XF305
camcorders use a rolling shutter that
requires a particular mounting con guration
in a beamsplitter rig. The tops of the frames
must match so there is no rolling shutter
disparity between the sensors. If the mirror
in your rig faces the ground and the upright
camera mounts underneath then the camera
can be mounted on the plate normally. If
your mirror faces up and the upright camera
points down then the camera must be
mounted upside down so that the top-
bottom orientation of the sensors match.
ALIGNING THE CAMERAS
Reset Focal Length Guide
Zoom both lenses all the way in, frame each on a common target, and then navigate to the CAMERA
SETUP -- ZOOM -- FOCAL LENGTH GUIDE menu item and select "SET TO 0" and then press SET. Press
MENU to return to the normal display. Now as you change the zoom you will see a
number displayed on the screen that corresponds to the focal length of the lens. This
allows you to set both lenses to the same focal length. However, this number does
not refer to the actual focal length of the lens in mm and does not guarantee a match.
XF300/305 Whitepaper
Tim Dashwood
Stereoscopic 3D
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