- Active Area: Charts are available in two sizes. It is recommended that the smaller charts be used to test imaging systems with sensors up to 8mp, and the larger charts be used for testing of sensors above 8mp.
- The smaller chart has an active area of of approximately 533.4mm x 863.6mm (21″ x 34″) and is printed on 571.5mm x 952.5mm (22.5″ x 37.5″) paper.
- The larger chart has an active area of approximately 850.9mm x 1397mm (33.5″ x 55″) and is printed on 1038.22mm x 1428.75mm (40.87″ x 56.25″) paper.
- Paper/ink type: Semi-gloss OR Matte. Matte paper/ink can be used to reduce reflected light, but is slightly less sharp than semi-gloss paper. Semi-gloss paper/ink is recommended for most applications.
Notes: This chart is used to measure sharpness from slanted-edge patterns (as Spatial Frequency Response = SFR) using the Imatest SFR module. It can also measure resolution from the hyperbolic wedges using the Imatest Wedge module (a part of Rescharts).