4 × 6 inches (102 × 152 mm)Letter (8.5 × 11 inches [216 × 279 mm]) 4 × 6 inches (102 × 152 mm)Letter (8.5 × 11 inches [216 × 279 mm]) 4 × 6 inches (102 × 152 mm)5 × 7 inches (127 × 178 mm)8 × 10 inches (203 × 254 mm)Letter (8.5 × 11 inches [216 × 279 mm]) 8 × 10 inches (203 × 254 mm)Letter (8.5 × 11 inches [216 × 279 mm])