Back in 2009, James Cameron wrote up his “10 Rules for Good Stereo” for 3D CineCast, and it’s still relevant today. Containing everything from opinions on screen depth and convergence, it also has a great “checklist” for fixing problems containing some things many people miss:
- Render Errors or element drop-outs between eyes — some actual thing, object, shadow or lighting artifact is missing from one eye.
- Specular Highlights — because the angle of reflection is different for glossy or mirror surfaces as viewed from left or right eyes, highlights may exist in one eye but not the other.
- Lens Flare, matte box shadows — these may strike one lens, not the other.
- Image Warping — this can happen at the edges of frame with certain lenses, and can happen with warped beamsplitters.
- Movement or vibration which is different in L-R. This shows up in some camera systems (not ours). It takes a lot of jiggle between eyes to become apparent.
