Test targed made of black cardboard 700 x 466 mm size. L shaped test pattern was printed on 1200 dpi laser printer at right angle, with gray background edge slanted at 5.7 degrees. When glued to the black cardboard, b/w stripes ended at 5.7 degree angle. Kodak Q-13 and GretagMacbeth Color Checker patterns included, along with ancient USAF1951 targets. Center and edge targets used for my regular tests marked in red.