parfocality

(ˌpɑːfəʊˈkælɪtɪ)

(General Physics) optics the quality of being parfocal

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

References in periodicals archive

Parfocality adjustment was through a Keplerian beam expander.

Application of optical trapping for cells grown on plates: optimization of PCR and fidelity of DNA sequencing of p53 gene from a single cell

So if parfocality is a concern, you are probably better off buying one set rather than mixing brands.

Your basic eyepiece set

All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.