AFBO No2 Scale

The famous American Board of Forensic Odontology (ABFO)scale No 2

 The three circles are useful to compensate for distortion resulting from oblique camera angles, and can help in rectification

Graduations are metric and the width of the legs, are 254mm wide(1").

Use this with small find photography to achieve an unparalleled level of accuracy in photographic recording of an object.

• Rigid, 1mm thick L-shaped laminated plastic
• Millimeter markings accurate to 0.1mm or better
• Overall size is 105mm x 105mm
• Gray areas have a reflectance value of approximately 18%

Special note:
The 1cm division lines are traced and extended across the photographic print to grid an image. Measurements within the image are then made relative to these inscribed 1cm grid lines to compensate for any distortion resulting from nonparallelism between the film and the object planes.