Commodity2005200620072008200920102011
Objective lenses for cameras/projectors/photog. enlargers/reducers, of any ...  $10 $5,483$94 
Objective lenses (excl. of 9002.11), of any mat., mounted$1,119 $2,850    
Filters (i.e., optical elements), of any mat., mounted$1,930 $392$37,864 $6,205 
Lenses, prisms, mirrors & oth.optical elements, of any mat., mounted, being ...$10,840$13,997$6,979$572 $6,927$1,984
Total$13,889$13,997$10,231$38,436$5,483$13,226$1,984