Resolution Target - USAF 1951, Group 9 (548nm)
This is the USAF 1951 resolution test pattern printed in chrome on a 25 x 25 x 2.3mm substrate of pure fused-silica quartz. The pattern has fully resolved ranging from 500um down to 548nm (group 9, element 6). This chip is easy to store, superbly manufactured from the best materials, and perfect for testing the resolving power of microscopy equipment. Available as either a positive or negative tone.