Section 18 Optical, photographic, cinematographic, measuring, checking, precision, medical or surgical instruments and apparatus; clocks and watches; musical instruments; parts and accessories thereof 90 Optical, photographic, cinematographic, measuring, checking, precision, me Thereof. 90 02 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 Commodity Code Description 90 02 11 - - For cameras, projectors or photographic enlargers or reducers 90 02 19 - - Other 90 02 20 - - - For photographic or cinematographic apparatus (including projectors) 90 02 90 - - - For photographic or cinematographic apparatus (including projectors)