Details：

The test charts have three density ranges to suit every need. The charts allow you to measure the tonal response, noise, and dynamic range of various imaging systems with a single image instead of multiple, exposure bracketed images. The targets also contain slanted edges with 4:1 contrast for measuring MTF. The edges have an MTF50 >= 16 cycles/mm, which is about three times better than the best inkjet charts. The middle gray background density enables proper exposure with automatic exposure cameras. Dynamic Range test targets with black backgrounds tend to overexpose the brighter patches with auto-exposure cameras. Please note that the individual patches are not spectrally neutral, and the dynamic range is measured using Optical Density. The exact hue of individual patches may vary.

Active area：197mm x 235mm（7.75x9.25 inches）