- Glasses, field or opera (1)
- Magnifying instruments, nec, optical (1)
- Microscopes, except electron, proton, and corneal (1)
- Phototheodolites (1)
- Telescopes: elbow, panoramic, sighting, fire control, etc. (1)
- Lens grinding equipment, except ophthalmic (1)
- Mirrors, optical (1)
- Optical elements and assemblies, except ophthalmic (1)
- Reflectors, optical (1)
