You need test patterns to align your 3D rig ? Check Beale Corner Production’s test patterns. Belaer Corner in based in Mountain View, CA, USA and is specialised in wedding videos. They use their own test patterns to align the RED cameras.
The “High Resolution Test Patterns for testing imaging systems” page is here on Beale Corner Production’s web site. You will find the ISO1223 Chart, the EIA-1956 chart, and several others in very high resolution.