Abstract

A total of 5000 photographic exposures of small targets of various contrasts have been made for the purpose of determining the smallest images which can reliably be detected in a standard film reader. In the majority of cases the liminal image size lay between 10−4 and 10−3 in. The study indicates that uncorrected predictions made on the basis of ordinary visual contrast discrimination data may be in error by an order of magnitude.

© 1959 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Detail Rendition by Photographic Systems as a Function of Exposure Time*

Robert N. Wolfe
J. Opt. Soc. Am. 49(2) 172-175 (1959)

Direct Measures of the Retinal Image*

Donald W. DeMott
J. Opt. Soc. Am. 49(6) 571-579 (1959)

Quantum Efficiency of Human Vision

R. Clark Jones
J. Opt. Soc. Am. 49(7) 645-653 (1959)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (3)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription