21 Step Exposure Test Guide
Achieve the correct exposure every time with the SAATI 21-step exposure guide.
Easy to use, just count steps after developing.
Find the right exposure with one easy test, 100% guaranteed.
Works for any combination of mesh & emulsion.
Eliminate re-makes and save money.
Instructional Video Link: https://youtu.be/mFsstlHG1Ig
Product Tutorial: http://literature.saatiexpress.com/tech-tips/21step_tutorial.pdf