Brash & Plucky

Diaphragm and f-stop - 2014-08-17

[EDIT] This post was migrated from my blog from 2011…

This is just another image taken from the Maverick Unit Testing system. The chart displays different polygonal diaphragms at different f-stop values. Doubling the f-stop number, halves the surface light can pass through.

Polygonal diaphragms and f-stop