Summary
Fltr
Filters
FIlters are most commonly glass plates with color variations or tinting of some manner that are placed in front of the camera lens to affect the light entering the camera. Fiters can be round and threaded to screw directly onto a lens front barrel. Other filters are rectangular and silde into filter trays that are inserted into matte box housings. Any translucent or semi-transparent object placed in front of the camera lens can be considered a filter, including; plastics, fabrics, mirrors or other.