Stop guessing exposure times. Burn one test and read the answer. Every emulsion, lamp, and mesh combo exposes differently, and the 10 Step Exposure Guide dials yours in with a single screen. The guide's ten density steps expose at different effective rates, so one wash-out shows you exactly where your time should land.How to use: Place the guide on your screen and expose normally. After washout, the guide should show solid through step 7 with steps 8 through 10 clear: that's ideal exposure. Under-exposure causes stencil breakdown; over-exposure costs you fine detail. Use multiple guides across one screen to judge how even your light is.Reach for it when: Switching emulsions or bulbs Stencils keep breaking down on press Fine detail keeps washing away Specs: Reusable test film. Works with any emulsion and exposure unit.