This filter is made using ColorCore technology, a process that involves laminating the filter substrate between 2 pieces of optical glass and grinding flat to a tolerance of 1/10,000th of an inch. This filter measures 4 x 4" / 101.6 x 101.6mm. Combination of both an amber light balancing 81EF and a neutral density filter. 0.9 ND filter darkens the image, allowing you to photograph with a longer shutter speed or wider aperture than normally required. 81EF light balancing filter decreases color temperature and provides a warming effect.

• Amber 81EF and 0.9 ND Combo

Amber 81EF and 0.9 ND ComboThe Tiffen Company