2011General Discussion forum
Single-camera 3D stereoscopic filming using a Phantom 65 with Russian dual-image lenses
15 years old. Gear and prices may have changed since.
What the thread found
- A single Phantom 65 camera body can produce 3D stereoscopic images using specialized Russian optical lenses that project two simultaneous images onto the sensor.
- This single-camera 3D system is relatively lightweight, comparable to a film camera package.
- Convergence (the depth alignment of the two images) can be controlled by shifting the lenses without introducing keystone distortion.
- Convergence adjustment is typically done by an assistant monitoring a 3D display while shooting, using dedicated remote control units.
- The system produces significant distortion that requires correction in post-production before the footage can be viewed.
- The dual images displayed on the monitor during shooting can be challenging to frame, as adjusting one image impacts the composition of the other, particularly when the scene contains near objects at 1-2 meter distances.
- Live broadcast with this system is impractical because the two images must be separated and processed in post-production before viewing.
- Beam splitter systems remain the preferred approach for critical stereoscopic work due to the limitations and complexity of single-lens solutions.
Depends on
- Convergence in this system is typically fixed or requires optical adjustment, lacking real-time electronic control.
- The technique introduces optical distortion requiring post-production correction.
- Not suitable for live broadcast applications.
- Monitor display shows two overlapping images simultaneously, complicating framing and composition decisions.
- The system requires additional support equipment and trained operators for convergence control during shooting.