Continuous Close Focusing Telephoto Zoom Lenses
Abstract
Compact telephoto zoom lenses with continuous close focusing have been designed for 35mm photography. These lenses are less complex optically and mechanically than previous design types.
- Publication:
-
Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series
- Pub Date:
- September 1980
- DOI:
- 10.1117/12.959119
- Bibcode:
- 1980SPIE..237..488B