I have a couple of questions relating to exposure for lith printing. The general consensus seem to be exposing for an extra three-stops or so. In the books and comments online people seem to do that by adding time: taking an x-second exposure and leaving it in three times longer. Here's my first silly question, Does that give different results from simply incresing the amount of light by three stops? I'm thinking it must be different or people wouldn't sit through many-minute exposures, but then WHY would it be different? If it's not different, if you can just add light, then if you were doing a contact print could you not just stick it in broad daylight for a few moments? All three options (more time, more enlarger light, sunlight) as all as easy or as difficult for me. I've tried both extra time and extra stops but I'm not very good at lith printing to begin with and thought some others might have a definite opinion one way or another.