What group did Ansel Adams and Edward Weston help to found? Group Aperture
Group f/64
Group Macro
Group 100 ISO

Group f/64.

Explanation:

In 1932, Weston, his son Brett, Ansel Adams, Imogen Cunningham, and a handful of other Bay Area photographers formed a group of like-minded realists who called themselves Group f/64, in honor of an aperture setting on a lens one might stop down to in order to attain the sharpest focus in a photograph.