a. Plot Step 21 at the intersection of the vertical line numbered 21 and the density value you
read and recorded on the sensitometer data sheet.
b. Plot the remaining Steps, 20 through 1, using the same procedures.
c. With a straight edge and French curve, connect the plots. Use the following method:
REFER TO FIGURE 34, FOR STEPS C AND D.
(1) Position the straight edge along the portion of the curve with as many of the plots as possible
lined up along the straight edge.
SOME OF THE PLOTS WITHIN THIS AREA MAY NOT BE EXACTLY ON
THIS STRAIGHT EDGE.
(2) Using a sharp pencil, draw a line connecting the plots that fall along the straight edge.
Include only the straight-line portion of the characteristic curve on this line.
Drawing straight portion of curve.