This unique, two-sided metric scale can be folded for easy storage or used as a straight scale. The short arm of the scale can be adjusted to any angle, providing versatility. The two-tone color scheme provides maximum contrast for any photographic situation. One face is white with black markings. The reverse is black with white markings. Alternating black and white bands provide contrast at a distance. Neutral gray bars assist in color correction and crosshairs at each end provide photogrammetry corrections.