I calibrated a 22x ENG lens. Next on the list are boxlenses like a 27x up to 86x for AR in sports. 

But it would reqiure a football field to be able to calibrate on the Aximmetry chart. For the 22x I already needed a large studio to get it calibrated and not able to refocus while calibrating is not easy. 

So therefore a request for even much smaller charts to very small (maybe a field to give the measurement of the printed chart per 6 zoom steps). And if we would be able to refocus during calibration. As with a large zoomlens a small distance change, the chart is very quickly out of focus.