Continuous Close Focusing Telephoto Zoom Lenses

Ellis I. Betensky; Melvyn H. Kreitzer; Jacob Moskovich

doi:10.1117/12.959119

16 September 1980 Continuous Close Focusing Telephoto Zoom Lenses

Ellis I. Betensky, Melvyn H. Kreitzer, Jacob Moskovich

Proceedings Volume 0237, 1980 International Lens Design Conference; (1980) https://doi.org/10.1117/12.959119
Event: 1980 International Lens Design Conference, 1980, Oakland, United States

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.

Citation Download Citation

Ellis I. Betensky, Melvyn H. Kreitzer, and Jacob Moskovich "Continuous Close Focusing Telephoto Zoom Lenses", Proc. SPIE 0237, 1980 International Lens Design Conference, (16 September 1980); https://doi.org/10.1117/12.959119

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available