Polarizing filter for use with Sigma EM-140DG and Metz 15 MS-1 ring flashes. Also compatible with Nikon SB-29S ring flash. Comes with box and 2 sets of magnets and adhesives.
– Prosthodontics & composites: colour matching, colour mapping, opacity.
– Cosmetics: dental bleaching comparison.
– Restorative & othodontics: evaluation of enamel decalcification & cracks.
– Artistic photography, birefringence.