The concept of centering a precision, symmetric lens system using a high-quality rotary table and an auto-focusing test
instrument are well known. Less well known are methods of finding convenient, or easily accessible, lens conjugates on
which to focus while performing the centering operation. We introduce methods of finding suitable conjugates and centering
configurations that lend themselves to practical centering solutions.
Robert E. Parks, Robert E. Parks,
"Conjugate selection for precision lens centering", Proc. SPIE 7793, Optical System Alignment, Tolerancing, and Verification IV, 779304 (20 August 2010); doi: 10.1117/12.859087; https://doi.org/10.1117/12.859087