Analyzing a Step Exposure
Every set-up is different, meaning that you will need to experiment in order to determine the optimal time for exposing a stencil with your unique set-up. This is true for your first exposure as well as anytime you change any of the six variables for exposure: light, distance, stencil type, mesh count, mesh colour, and stencil thickness.
A step exposure is a great method to determine the best exposure time. A step exposure tests exposure time by exposing sections of one screen to light for varying lengths of time. The result is one screen with a range of under-exposed to over-exposed regions.