Details
Document ID:
590121
Year:
1959
Pages:
12
Pricing
Digital, Member:
$10.00
Digital, Non-Member:
$20.00
Photo, Member:
$15.00
Photo, Non-Member:
$30.00
Abstract
The function of the contact screen in making halftones is described in terms of the light-intensity distribution pattern produced on the emulsion. The relation of this pattern to tone reproduction is explained. The color and dot-shape properties of contact screens are discussed. Also, the effects of auxiliary exposures are shown, and a number of problems encountered in using screens are discussed. The design of screens for making halftone negatives and positives is considered.