The Imaging Science Foundation (ISF) has released some free 4K test patterns for B&W levels and geometry/resolution. This is just in time to meet up with the new 4K displays hitting the market (in volume) this year. ISF calibrators found that they needed these patterns for CES product evaluations, and, since they didn't see a large market developing in which to sell them anytime soon, they decided to gift them out to their certified calibrators.
Discuss "ISF Gives Away 4K Test Patterns to Calibrators" here. Read the article.