- List of them for various gauges
- 16mm full frame, anamorphic, various matting
- ditto for other small gauges
- large gauges?
- 35mm:
- 1.19 / Movietone
- 1.33 / full frame / silent
- 1.37 / Academy ratio
- 1.78
- 1.85 (hard vs. soft matting)
- Anamorphic
- Aperture plates
- Lenses
- Masking