Photographic paper chart is a reflection type test chart made of black and white photographic paper, which is a photosensitive material.
It is used for various scanner calibration, a resolution chart for camera shooting, a distortion charts, and the like.
Generally, a film master is produced first, and then a photographic paper chart is produced based on it.
Comparison with other reflection type charts
Compared to other reflection type test charts, such as white glass charts and offset photographic charts, photographic paper chart has the following features:
- Inexpensive in low-volume productions
- Practicable in production of large size product
- Practicable in drawing high-precise patterns than offset printing
Basic specifications
Thickness
0.25 mm
Size
Maximum size 508 x 610 mm
Minimum line width
50um
