12" Flat Calibration

The calibration process was straightforward once I installed the new high stability cell, and the full area coverage on my 12" flat was spot-on. Measurements came back consistent across the entire surface, which is exactly what I needed.

The full area calibration on our 12" flat came back spot on, and you can really tell the difference now that it's mounted in a high stability cell. Turned a reference flat we'd been second-guessing into one we actually trust for interferometry work.

Wasn't sure the new high stability cell was worth the extra cost, but the full area calibration came back tighter than our old reference ever measured. Every point across the 12" surface checked out, not just the center.