Experimentation with Nikon D40X settings. My cacti sunning itself on a cinderblock in the yard.

F-13, 1/500, ISO 400

F-13, 1/320, ISO 400

F-13, 1/15, ISO 400

F-13, 1/500, ISO 400

F-13, 1/800, ISO 1600, WHITE BALANCE: Shade

F-13, 1/800, ISO 1600, WHITE BALANCE: Shade

F-5.6, 1/1,1600, 1600

F-25, Exposure 1/25, 1600

F-36, 1/25, 1600

F-5.6, 1/1,250, ISO 1600

F7.1, 1/100, ISO 200

F8, 1/100, ISO 200