Use Sirchie Vinyl Photo Evidence 6" Scales (Set of 10, Black) when photographing evidence for precise measurement. The scales are 0.020" thick calibrated in both inches and millimeters with crosshairs at each end. The scales also feature a flat finish which eliminates reflections.
|Scale Thickness||0.020" / 0.05cm|
|Scale Size||6" / 15.24cm|