<sod>The black and white [[gelatin-silver process]] may be done using a red "safe light" for darkroom illumination. The contact printer may also contain a safe light so that the negative can be examined before the photographic paper is laid upon it.<eod>
<sod>The black and white [[gelatin-silver process]] may be done using a [[safelight]] for darkroom illumination. The contact printer may also contain a safelight so that the negative can be examined before the photographic paper is laid upon it.<eod>