Commodity200520062008200920102011
Objective lenses for cameras/projectors/photog. enlargers/reducers, of any ...$7,584 $142$4,760  
Objective lenses (excl. of 9002.11), of any mat., mounted $18 $244$18,091$3,611
Filters (i.e., optical elements), of any mat., mounted $272    
Lenses, prisms, mirrors & oth.optical elements, of any mat., mounted, being ...$260$2,205$2,228  $28,875
Total$7,844$2,495$2,370$5,004$18,091$32,486