9002            |    Lenses, prisms, mirrors and other optical elements, of any material, mounted, being parts of or fittings for instruments or apparatus, other than such elements of glass not optically worked.
9002.11.00     -- For cameras, projectors or photographic enlargers or reducers
9002.19.00     -- Other
9002.20.00   - Filters
9002.90.00   - Other