Simplest means

"Jerome Delay has been on a quest for simplicity while covering some of the most important stories in Africa for The Associated Press. For the last year he has relied almost exclusively on one camera, and one lens, a 50-millimeter F1.4."  http://lens.blogs.nytimes.com/2013/09/04/the-lens-is-standard-the-photos-anything-but/?hp&_r=3