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2010Cameras (Film/Video/HD) forum

Preparing for first 3D camera work with a beam splitter rig on Steadicam

16 years old. Gear and prices may have changed since.

What the thread found

  • Beam splitter rigs like the Neutron are compact and manageable in weight for Steadicam operation but require careful attention to camera alignment during setup and transport.
  • Stereographers often lack camera department experience, so the operator should closely supervise how accessories and equipment are distributed symmetrically between cameras to maintain balance.
  • Wide lenses combined with smooth, stable operating technique are essential in 3D work because audience comfort is compromised by excessive panning and camera movement.
  • Manual focusing through clamps on C-mount lenses can be time-consuming and requires frequent equipment downtime.
  • The Cinedeck recording system eliminates tethering cables but has specific bootup requirements and may need additional power solutions beyond single Steadicam batteries.
  • Interaxial and convergence adjustments on early Neutron prototypes required manual setup between shots rather than real-time remote control.
  • A quick-release plate on the Steadicam dovetail helps maintain camera alignment when the rig is frequently handled by stereographers doing chart work and calibration.
  • The Cinedeck composite output generates a slight video delay and occasionally jittery playback, but these issues were not operationally problematic.
  • Three-dimensional video playback can be monitored at video village with polarized glasses to review work immediately during shooting.

Depends on

  • This discussion centers on prototype and early production versions of rigs that may have evolved since 2010.
  • Specific battery power solutions mentioned were tested with Steadicam-specific power systems and may not apply to other configurations.
  • Experience is limited to SI-2K cameras; behavior with larger cameras like the Sony900R or RED was acknowledged as potentially different.
  • The Cinedeck bootup issue with composite video output was identified as a Windows operating system quirk rather than a hardware design problem.
  • Remote motorized convergence and interaxial adjustment were still in development at the time of discussion.
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