Jones diagram

English

Two-quadrant analogue of a Jones diagram showing the relationship between a camera's focal length, crop factor and angle of view for two aspect ratios via its effective focal length

Etymology

Developed by Loyd A. Jones in the 1940s.

Noun

Jones diagram (plural Jones diagrams)

1. A type of Cartesian graph where each axis represents a different variable, and opposite directions along an axis represent different quantities rather than positive or negative signs of the same quantity; thus four variables are diagrammed in total.