APPENDIX C 845 



Density-Opacity-Transmission Conversion Factors. — {Continued) 



Note: — The values of density, opacity, and transmission given in Appendix C are the values most 

 commonly used in photography. The table may be easily extended for other values, which, however, 

 are not frequently encountered. Every time another digit is added in the density column, the corre- 

 sponding opacity is increased ten times its value by moving the decimal point one place to the right; 

 the transmission is reduced to 10% of its values by moving the decimal point one place to the left. 

 Thus, density 0.3 has opacity of 1.995 and transmission of 0.5012, whereas density 1.3 has opacity of 

 19.95 and transmission of 0.05012. 



