Category: Technology
Created by: karel24
Number of Blossarys: 23
A focusing method that divides the lens system into multiple groups and focusing by moving only the rear group.
A simple lens having one concave and one convex side. If the convex side has a longer focal length than the concave side, the lens is a diverging lens. But if the concave side has the longer focal ...
An opening (lens aperture) that is circular in shape. Lenses in which the opening created by the diaphragm blades is circular instead of polygonal improves the appearance of out-of-focus elements ...
A short form of “subject-to-camera distance information”, for use only where space restrictions prohibit use of the full term. Subject-to-camera distance information refers to the data supplied to ...
A measure of the change in the angle of a lightwave or other wave traveling in a straight line when it passes across the boundary between two different mediums. “HRI” is an abbreviation of “high ...
A comparison of contrast between a test chart and the reproduced image. One of the measurements of lens performance used in the manufacturing process.