Dust effects corr^dust on the derived scale-length of thin disks fitted with exponential functions. The symbols represent the measurements while the solid lines are polynomial fits to the measurements. The plots represent the inclination dependence of the ratio between the apparent and intrinsic scale-lengths, R_app and R_i respectively. From left to right, the plots corresponds to increasing UV wavelengths: 912 Å, 1500 Å, 2200 Å, and 2800 Å. From bottom to top the black curves are plotted for . The green curve corresponds to .