Ellis I. Betensky

Forty years of modern zoom lens design

Ellis I. Betensky, 2005, SPIE Optics + Photonics.

Fundamental considerations for zoom lens design

Ellis I. Betensky, Richard N. Youngworth, 2012, Other Conferences.

Understanding how entrance and exit pupils have determined the evolution of the modern zoom lens design (tutorial)

Ellis I. Betensky, 2015, SPIE Optical Engineering + Applications.

The AWMC metric for zoom lens assessment

Ellis I. Betensky, William T. Plummer, Richard N. Youngworth, 2012, Other Conferences.

Designing astigmatism-corrected zoom lenses for digital consumer imaging

Ellis I. Betensky, Richard N. Youngworth, 2019, Optical Engineering + Applications.

Aberration correction and desensitization of an inverse-triplet object lens

Ellis I. Betensky, 1998, Other Conferences.