The ABFO No. 2 Scale was designed by the American Board of Forensic Odontology. By meeting their specific criteria, we are allowed to produce this scale with the approval to use their name.
Rigid, L-shaped piece of laminated plastic 1 mm thick
Millimeter markings accurate to 0.1 mm or better
Overall size is 105 mm x 105 mm (about 4" x 4")
Gray areas have a reflectance value of approximately 18%
Alternating black and white bars (1 cm) to permit measurements from grossly over- and underexposed photographs
