![SPIE Proceedings [SPIE Optical Science, Engineering and Instrumentation '97 - San Diego, CA (Sunday 27 July 1997)] Zoom Lenses II - <title>Design and analysis of a compact wide-field unobscured zoom mirror system</title>]()
SPIE Proceedings [SPIE Optical Science, Engineering and Instrumentation '97 - San Diego, CA (Sunday 27 July 1997)] Zoom Lenses II - <title>Design and analysis of a compact wide-field unobscured zoom mirror system</title>Mann, Allen; Johnson, R. Barry; Betensky, Ellis I.; Mann, Allen; Neil, Iain A. · 1997