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These 35 mm x 51¤4-inch strips are supplied in a box of five foil packages that contain 10 strips each. Each box includes a reference strip. The ends of the strips are perforated for use with standard control-strip racks. Each strip has five steps: D-min, LD, HD, D-max, and yellow. A raised dimple is located on the emulsion side at the low-density end of the strip.
